CN113166156B

CN113166156B - Tyrosine kinase inhibitors, compositions and methods

Info

Publication number: CN113166156B
Application number: CN201980077490.6A
Authority: CN
Inventors: 付邦; 李因龙; 任伟; 陈洁; 刘湘永; 王家炳; 丁列明
Original assignee: Betta Pharmaceuticals Co Ltd
Current assignee: Betta Pharmaceuticals Co Ltd
Priority date: 2018-12-07
Filing date: 2019-12-06
Publication date: 2024-02-27
Anticipated expiration: 2039-12-06
Also published as: US20210395256A1; SG11202105881RA; KR20210124961A; MX2021006619A; WO2020114499A1; TW202033526A; JP2022510380A; EP3891152A4; IL283599A; CA3122136A1; BR112021010930A2; CN113166156A; AU2019394520A1; EP3891152A1

Abstract

The present invention relates to compounds of formula I, methods of using these compounds as Trk inhibitors, and pharmaceutical compositions comprising such compounds. These compounds are useful for treating, preventing or ameliorating a disease or disorder, such as cancer or infection.

Description

Tyrosine kinase inhibitors, compositions and methods

Technical Field

The present application relates to pharmaceutically active compounds. The present invention provides compounds, and compositions and methods of use thereof. The compounds inhibit tropomyosin-related kinase (Trks) and are useful in the treatment of various diseases, including infectious diseases and cancers.

Background

Tropomyosin-related kinases (Trks) are a class of neurotrophic factor-mediated receptor tyrosine kinases including TrkA, trkB and TrkC, encoded by the genes NTRK1, NTRK2 and NTRK3, respectively. Many cellular functions, such as cell proliferation, cell differentiation, metabolism and apoptosis, are mediated by Trks through phosphorylation and modulation of downstream signaling pathway members. Gene fusion involving NTRK genes results in sustained activation or overexpression of these kinases, thereby increasing the risk of tumorigenesis.

Trk plays an important physiological role in the development of nerves, including growth and functional maintenance of nerve axons, development of memory, and protection of neurons from damage. Furthermore, the results indicate that Trk is abnormally expressed in normal or cancerous tissue, whereas fusion may lead to abnormally high expression and activation of Trk kinase domains. Trk fusion is found in various tumor tissues with low fusion rates such as thyroid cancer, lung cancer, colon cancer and melanoma. It is estimated that 1500-5000 patients have Trk fusion positive cancers in the united states each year.

In recent years, trk fusion protein is becoming an effective tumor target, wherein the fastest-growing Trk small molecule inhibitor is larotentiib of Loxo tumor company, and has a strong inhibiting effect on Trk clinically. Previous applications, WO2010048314, WO2011006074, WO2016097869 and WO2018077246 disclose a range of Trk inhibitors. Accordingly, there remains a need for Trk inhibitors with greater activity and better metabolic stability of hepatic microsomes. In addition, given the importance of Trk physiological function, there is a great need for inhibitors of Trk that can inhibit not only Trk a, B and C, but also mutant forms of Trk a, B and C (e.g., G595R, G667C, A608D, F589L, G623R), which have been reported in patients receiving first generation Trk kinase inhibitors. In the present invention, applicants have discovered potent small molecules with Trk inhibitor activity and thus may be useful in therapeutic administration against cancer and/or infectious diseases. These small molecules are expected to be useful drugs with good stability, solubility, bioavailability, therapeutic index and toxic value, which are critical to promoting human health.

Disclosure of Invention

The present invention relates to compounds useful as Trk inhibitors. Trk inhibitors are useful in the treatment of cancer and infectious diseases.

The compounds of the present invention have the general structure of formula I. A compound of formula I or an isomer, stereoisomer, tautomer, pharmaceutically acceptable salt, prodrug, chelate, non-covalent complex or solvate thereof,

wherein,

ring A is C _5-6 Heterocycles, where C _5-6 The heterocycle optionally comprises 1, 2 or 3 heteroatoms independently selected from N, S or O;

ring B is a 5 membered aromatic heterocycle;

x and Z are each independently selected from C, N, O or S;

y is C or N;

R ₁ selected from the group consisting of absence, H, or-C _1-8 An alkyl group;

R ₂ selected from H, -C _0-4 alkyl-COOR ₁₀ 、-C _0-4 alkyl-NH-COOR ₁₀ 、-C _0-4 alkyl-O (CO) R ₁₀ 、-C _0-4 alkyl-O (CO) -C _1-4 alkyl-NHCO-R ₁₀ 、-C _1-4 alkyl-NH ₂ 、-C _0-4 alkyl-OH, -C _1-4 alkyl-C _3-10 Carbocycle, or-C _0-4 alkyl-C _3-10 Heterocycle, -C _0-4 alkyl-C _6-10 Aromatic ring or-C _0-4 alkyl-C _5-10 Heteroaromatic ring, wherein, -C _0-4 alkyl-COOR ₁₀ 、-C _0-4 alkyl-NH-COOR ₁₀ 、-C _0-4 alkyl-O (CO) R ₁₀ 、-C _0-4 alkyl-O (CO) -C _1-4 alkyl-NHCO-R ₁₀ 、-C _1-4 alkyl-NH ₂ 、-C _0-4 alkyl-OH, -C _0-4 alkyl-C _3-10 Carbocycles, -C _0-4 alkyl-C _3-10 Heterocycle, -C _0-4 alkyl-C _6-10 Aromatic ring, or-C _0-4 alkyl-C _5-10 The heteroaromatic ring may optionally be-C _1-8 Alkyl, -C _2-8 Alkynyl, -C _1-8 Haloalkyl, -C _1-8 alkyl-OH, halogen, OH, CN, NH ₂ 、-C _0-4 alkyl-COOR ₁₀ 、-C _6-10 Aromatic ring, -O-C _6-10 Aromatic ring, substituted or unsubstituted-C _3-10 Carbocycle, or substituted or unsubstituted-C _3-10 Heterocyclic ring substitution;

R ₃ selected from the group consisting of absence, C _3-10 A heterocycle; or (b)

R ₂ And R is ₃ Forms a 5 to 6 membered carbocyclic, heterocyclic, aromatic or heteroaromatic ring together with the atoms to which they are attached, wherein the 5 to 6 membered carbocyclic, heterocyclic, aromatic or heteroaromatic ring may optionally be substituted with halogen, OH, CN, NH ₂ ,-CONHOH,-CONH ₂ ,-C _0-4 alkyl-COOR ₁₀ ,-C _0-4 alkyl-O (CO) OR ₁₀ ,-C _1-8 Alkoxy, -C _1-8 Haloalkoxy, -C _1-8 alkoxy-C _1-8 Alkoxy, -C _1-8 Alkylthio, -C _1-8 Haloalkylthio, -C _1-8 Alkyl, -C _1-8 Haloalkyl, -C _0-4 alkyl-OH, -O-CH ₂ -CN、-C _0-4 alkyl-O-C _3-10 Heterocyclic, substituted or unsubstituted-C _3-10 Carbocycle or substituted or unsubstituted-C _3-10 Heterocyclic ring substitution, or the 5-to 6-membered carbocyclic ring, heterocyclic ring, aromatic ring, or heteroaromatic ring forms a ring structure with other substituted or unsubstituted carbocyclic ring, substituted or unsubstituted heterocyclic ring, substituted or unsubstituted aryl ring, or substituted or unsubstituted heteroaryl ring;

R ₄ selected from (i) optionally substituted with one or more substituents independently selected from halogen, -C _1-4 Alkyl, -C _1-4 Haloalkyl, C _1-4 Phenyl substituted by substituents of alkoxy, or (ii) C having hetero atoms selected from N, S or O _5-6 Heteroaryl ring wherein C _5-6 Heteroaryl groups may be optionally substituted with one or more halogen atoms;

R ₁₀ Is H or-C _1-8 An alkyl group;

wherein the heterocycle or aromatic ring optionally has 1, 2 or 3 heteroatoms independently selected from N, S, O or B.

In some embodiments of formula I, ring A is

In some embodiments of formula I, X is independently selected from O, S or N.

In some embodiments of formula I, Y is C.

In some embodiments of formula I, Z is N.

In some embodiments of formula I, R ₄ Is that

In some embodiments of formula I, wherein the compound is a compound of formula II or an isomer, stereoisomer, tautomer, pharmaceutically acceptable salt, prodrug, chelate, non-covalent complex or solvate thereof,

wherein,

R ₁ is H or-C _1-8 An alkyl group;

R ₂ is H, -C _0-4 alkyl-COOR ₁₀ 、-C _0-4 alkyl-NH-COOR ₁₀ 、-C _0-4 alkyl-O (CO) R ₁₀ 、-C _0-4 alkyl-O (CO) -C _1-4 alkyl-NHCO-R ₁₀ 、-C _1-4 alkyl-NH ₂ 、-C _0-4 alkyl-OH, -C _1-4 alkyl-C _3-10 Carbocycle, or-C _0-4 alkyl-C _3-10 Heterocycle, -C _0-4 alkyl-C _6-10 Aromatic ring or-C _0-4 alkyl-C _5-10 Heteroaromatic ring, wherein-C _0-4 alkyl-COOR ₁₀ 、-C _0-4 alkyl-NH-COOR ₁₀ 、-C _0-4 alkyl-O (CO) R ₁₀ 、-C _0-4 alkyl-O (CO) -C _1-4 alkyl-NHCO-R ₁₀ 、-C _1-4 alkyl-NH ₂ 、-C _0-4 alkyl-OH, -C _1-4 alkyl-C _3-10 Carbocycles, -C _0-4 alkyl-C _3-10 Heterocycle, -C _0-4 alkyl-C _6-10 Aromatic ring, or-C _0-4 alkyl-C _5-10 The heteroaromatic ring may optionally be-C _1-8 Alkyl, -C _2-8 Alkynyl, -C _1-8 Haloalkyl, -C _1-8 alkyl-OH, halogen, OH, CN, NH ₂ 、-C _0-4 alkyl-COOR ₁₀ 、-C _6-10 Aromatic ring, -O-C _6-10 Aromatic ring, substituted or unsubstituted-C _3-10 Carbocycle or substituted or unsubstituted-C _3-10 Heterocyclic ring substitution;

R ₁₀ is H or-C _1-8 An alkyl group;

In some embodiments of formula II, ring A is

In some embodiments of formula II, R ₁ Independently selected from H or CH ₃ 。

In some embodiments of formula II, R ₄ Is that

In some embodiments of formula II, R ₂ Independently selected from

In some embodiments of formula II, R ₂ Is that

In some embodiments of formula I, wherein the compound is a compound of formula III or an isomer, stereoisomer, tautomer, pharmaceutically acceptable salt, prodrug, chelate, non-covalent complex or solvate thereof:

Wherein,

ring C is a 5-6 membered carbocyclic, heterocyclic, aryl, or heteroaryl ring;

x and Z are each independently selected from C, N, O or S;

y is C or N;

R ₄ selected from (i) optionally substituted with one or more substituents independently selected from halogen, -C _1-4 Alkyl, -C _1-4 Haloalkyl, C _1-4 Phenyl substituted by substituents of alkoxy, or (ii) C having hetero atoms selected from N, S or O _5-6 Heteroaryl ring wherein C _5-6 Heteroaryl groups may optionally be substituted with one or more halogenSubstitution of a prime atom;

R ₅ and R is ₆ Each independently selected from H, OH, NH ₂ 、CN、-COOH、-CONHOH、-CONH ₂ Halogen, -C _1-8 Alkyl, -C _0-4 alkyl-COOR ₁₀ 、-C _0-4 alkyl-O (CO) OR ₁₀ 、-C _1-8 Alkoxy, -C _1-8 Haloalkoxy, -C _1-8 alkoxy-C _1-8 Alkoxy, -C _1-8 Alkylthio, -C _1-8 Haloalkylthio, -C _1-8 Alkyl, -C _1-8 Haloalkyl, -C _0-4 alkyl-OH, -O-CH ₂ -CN、-C _0-4 alkyl-O-C _3-10 Heterocyclyl, substituted or unsubstituted-C _3-10 Carbocycle or substituted or unsubstituted-C _3-10 A heterocycle;

or R is ₅ And R is ₆ Together with the atoms to which they are attached, form a 5-to 12-membered carbocyclic, heterocyclic, aromatic, or heteroaromatic ring, wherein the 5-to 12-membered carbocyclic, heterocyclic, aromatic, or heteroaromatic ring may be optionally substituted with halogen;

R ₁₀ Is H or-C _1-8 An alkyl group;

wherein the heterocyclic or heteroaromatic ring optionally has 1, 2 or 3 heteroatoms independently selected from N, S, O or B.

In some embodiments of formula III, ring A is

In some embodiments of formula III, ring C is a 6-membered aromatic ring.

In some embodiments of formula III, ring C is phenyl, pyridinyl, pyridazinyl, or pyrimidinyl.

In some embodiments of formula III, ring C is phenyl.

In some embodiments of formula III, X is selected from O, S or N.

In some embodiments of formula III, X is N.

In some embodiments of formula III, Y is C.

In some embodiments of formula III, Z is N.

In some embodiments of formula III, R ₁ Is absent, H or CH ₃ 。

In some embodiments of formula III, R ₄ Is that

In some embodiments of formula III, R ₅ And R is ₆ Each independently selected from H, OH, NH ₂ 、F、Cl、Br、-CN、-CF ₃ 、-OCF ₃ 、CH ₃ 、-O-CH ₃ 、-S-CH ₃ 、-CH ₂ OH、-COOH、

In some embodiments of formula III, R ₅ And R is ₆ Are all-O-CH ₃ 。

In some embodiments of formula III, R ₅ And R is ₆ Together with the atoms to which they are attached form

In some embodiments of formula I, wherein the compound is a compound of formula IV or an isomer, stereoisomer, tautomer, pharmaceutically acceptable salt, prodrug, chelate, non-covalent complex or solvate thereof,

Wherein,

r' is H, NH ₂ or-C _1-4 An alkyl group;

ring B' is a 5-membered aromatic heterocyclic ring, wherein the 5-membered aromatic heterocyclic ring optionally has 1, 2 or 3 heteroatoms independently selected from N, S, or O;

ring C' is phenyl, a 6-membered heterocyclyl or a 6-membered heteroaryl ring;

x 'and Z' are each independently selected from C, N, O or S;

y' is C or N;

r' is-C (O) -C _1-4 Alkyl, -SO-C _1-4 Alkyl, -SO ₂ -C _1-4 Alkyl, -NR ₇ (CH ₂ ) _m NR ₈ R ₉ 、-(CH ₂ ) _m C _4-10 A heterocyclic group; optionally being independently selected from OH, CN, NH by 1 or more ₂ -C (O) OH, halogen, -C _1-4 Alkyl or-C _1-4 NH substituted by substituent of alkoxy ₂ 、-C(O)OH、-C(O)NH ₂ 、-C _1-4 Alkyl, -C _1-4 Alkoxy, -C (O) -C _1-4 Alkyl, -C (O) O-C _1-4 Alkyl, -OC (O) O-C _1-4 Alkyl, -S-C _1-4 Alkyl, -SO-C _1-4 Alkyl, -SO ₂ -C _1-4 Alkyl, -OC _4-6 Heterocyclyl, -NR ₈ (CH ₂ ) _m NR ₉ R ₁₀ 、-(CH ₂ ) _m C _4-10 A heterocyclic group; or (b)

Any two R' together with the atoms to which they are attached form a 5 to 12-membered ring;

R ₇ 、R ₈ And R is ₉ Each independently selected from H or-C _1-4 An alkyl group;

m and n are each independently selected from 0, 1, 2, 3 or 4.

In some embodiments of formula IV, ring A is

In some embodiments of formula IV, R' is selected from H.

In some embodiments of formula IV, R ₄ Is that

In some embodiments of formula IV, ring B' is selected from imidazole, oxazole, thiazole, triazole, or pyrrole.

In some embodiments of formula IV, ring B' is selected from

In some embodiments of formula IV, ring C is selected from phenyl, pyridine, pyrazine, pyrimidine, pyridazine, piperidine, or tetrahydropyran.

In some embodiments of formula IV, ring C' is selected from

In some embodiments of formula IV, R' is selected from

In some embodiments of formula IV, two R' together with the atoms to which they are attached form

In some embodiments of formula I, wherein the compound is a compound of formula V or an isomer, pharmaceutically acceptable salt thereof,

wherein,

R ₁₁ h, NH of a shape of H, NH ₂ or-C _1-4 An alkyl group;

ring B "is a 5-membered aromatic heterocyclic ring, wherein the 5-membered aromatic heterocyclic ring optionally has 1, 2, or 3 heteroatoms independently selected from N, S, or O;

ring C' is phenyl, a 6-membered heterocyclyl or a 6-membered heteroaryl ring;

x 'and Z' are each independently selected from C, N, O or S;

y' is C or N;

R ₁₂ selected from H, OH, CN, NH ₂ 、-C(O)OH、-C(O)NH ₂ Halogen, -C _1-4 Alkyl, -C _1-4 Alkoxy, -C (O) -C _1-4 Alkyl, -C (O) O-C _1-4 Alkyl, -OC (O) O-C _1-4 Alkyl, -S-C _1-4 Alkyl, -SO-C _1-4 Alkyl, -SO ₂ -C _1-4 Alkyl, -OC _4-6 Heterocyclyl, -NR ₇ ’(CH ₂ ) _m NR ₈ ’R ₉ ’、-(CH ₂ ) _m C _4-10 A heterocyclic group; wherein NH is ₂ 、-C(O)OH、-C(O)NH ₂ Halogen, -C _1-4 Alkyl, -C _1-4 Alkoxy, -C (O) -C _1-4 Alkyl, -C (O) O-C _1-4 Alkyl, -OC (O) O-C _1-4 Alkyl, -S-C _1-4 Alkyl, -SO-C _1-4 Alkyl, -SO ₂ -C _1-4 Alkyl, -OC _4-6 Heterocyclyl, -NR ₇ ’(CH ₂ ) _m NR ₈ ’R ₉ ’、-(CH ₂ ) _m C _4-10 The heterocyclic groups may optionally be substituted with one or more groups independently selected from OH, CN, NH ₂ -C (O) OH, halogen, -C _1-4 Alkyl or-C _1-4 Substitution of the substituent of the alkoxy group; or (b)

Any two R ₁₂ Together with the atoms to which they are attached, form a 5-to 12-membered ring;

R ₇ ’、R ₈ ' and R ₉ ' each independently selected from H or-C _1-4 An alkyl group;

m and n are each independently selected from 0, 1, 2, 3 or 4.

In some embodiments of formula V, ring A is

In some embodiments of formula V, R ₁₁ Selected from H, NH ₂ Or CH (CH) ₃ 。

In some embodiments of formula V, R ₄ Is that

In some embodiments of formula V, ring B "is selected from imidazole, oxazole, thiazole, triazole, or pyrrole.

In some embodiments of formula V, ring B' is selected from

In some embodiments of formula V, ring C "is selected from phenyl, pyridine, pyrazine, pyrimidine, pyridazine, piperidine, or tetrahydropyran.

In some embodiments of formula V, ring C' is selected from

In some embodiments of formula V, R ₁₂ Selected from H, -OH, F, cl, br, -CH ₃ 、-NH ₂ 、-COOH、-CN、

In some embodiments of formula V, two R ₁₂ Together with the atoms to which they are attached form

The invention also provides some preferred technical schemes for the compounds of formula I, formula II, formula III, formula IV or formula V or isomers, pharmaceutically acceptable salts or solvates thereof, wherein the compounds are:

1) (R) -4- (4- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) phenyl) morpholine;

2) (R) -1- (4- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) pyridin-2-yl) piperidin-4-ol;

3) 5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (tetrahydrofuran-3-yl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

4) (S) -1- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) ethan-1-ol;

5) (1 s,4 s) -4- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) cyclohexan-1-ol;

6) (R) -4- (4- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) pyridin-2-yl) morpholine;

7) (R) -2- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) propan-2-ol;

8) (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (pyridin-4-yl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

9) (R) -4- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) phenol;

10 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (pyrazin-2-yl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

11 (S) -1- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) ethan-1-amine;

12 Methyl ((S) -1- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) ethyl) carbamate;

13 (R) -3- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) benzonitrile;

14 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (6- (trifluoromethyl) pyridin-3-yl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

15 3- (5- (azetidin-2-yl) -4H-1,2, 4-triazol-3-yl) -5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

16 Ethyl (R) -5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazole-3-carboxylate;

17 (R) -5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazole-3-carboxylic acid;

18 (3S) -3- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) cyclohexan-1-ol;

19 (3S) -3- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) cyclopentan-1-ol;

20 Tert-butyl 2- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) azetidine-1-carboxylate;

21 (R) -1- (4- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4-methyl-4H-1, 2, 4-triazol-3-yl) pyridin-2-yl) piperidin-4-ol;

22 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (piperidin-4-yl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

23 (R) -1- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) cyclobutyl-1-ol;

24 (R) -1- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) cyclobutyl-1-amine;

25 (S) -2- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -1, 1-trifluoropropan-2-ol;

26 (R) -2- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -1, 1-trifluoropropan-2-ol;

27 (R) -2- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -1, 3-hexafluoropropan-2-ol;

28 2- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -1, 1-trifluorobutan-2-ol;

29 3- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -1, 1-trifluoro-2-methylpropan-2-ol;

30 (R) -1- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -2-methylpropan-2-ol;

31 (R) -3- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) cyclobutyl-1-ol;

32 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (tetrahydro-2H-pyran-4-yl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

33 (R) -2- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -2-methylpropan-1-ol;

34 (R) -1- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) ethan-1-ol;

35 2- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) piperidin-4-ol;

36 (R) -6- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -1,2,3, 4-tetrahydroisoquinoline;

37 (1R, 3R) -3- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) adamantan-1-ol;

38 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (1-methylpiperidin-4-yl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

39 (R) -2- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) propan-1-ol;

40 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (4- (piperazin-1-yl) phenyl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

41 (R) -3- (5- (4, 4-difluorocyclohexyl) -4H-1,2, 4-triazol-3-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

42 (R) - (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) (phenyl) methanol;

43 (R) - (3- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) bicyclo [1.1.1] pentan-1-yl) methanol;

44 (R) -3- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) bicyclo [1.1.1] pentan-1-amine;

45 (R) -6- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) benzo [ c ] [1,2] oxaborol-1 (3H) -ol;

46 1- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -1, 1-difluorobutyl-2-ol;

47 1- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -2, 2-trifluoroethan-1-ol;

48 1- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) prop-2-yn-1-ol;

49 3- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) morpholine;

50 (R) -3- (5- (1H-indol-5-yl) -4H-1,2, 4-triazol-3-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

51 (S) -1- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) ethyl L-leucine hydrochloride;

52 2- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) -2-fluoroethane-1-ol;

53 (R) -1- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) cyclopropan-1-ol;

54 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (6- (4-methylpiperazin-1-yl) pyridin-3-yl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

55 (S) -1- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) L-valine ethyl ester hydrochloride;

56 (R) -6- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) quinoline;

57 (R) -3- (5- (1H-benzo [ d ] imidazo-6-yl) -4H-1,2, 4-triazol-3-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

58 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (4-phenoxyphenyl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

59 (R) -3- (5- (1H-indazol-6-yl) -4H-1,2, 4-triazol-3-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

60 (1R, 2s,3R,5 s) -5- (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) cyclohexane-1, 2,3, 5-tet-rol;

61 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (2, 3-dihydrobenzofuran-6-yl) -4H-1,2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine;

62 5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6- ((R) -hexahydropyrrolo [1,2-a ] pyrazin-2 (1H) -yl) -1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

63 2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- ((R) -hexahydropyrrolo [1,2-a ] pyrazin-2 (1H) -yl) benzo [ d ] thiazole;

64 (R) -4- (2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-imidazo [4,5-c ] pyridin-6-yl) morpholine;

65 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-imidazo [4,5-c ] pyridine;

66 1- (2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazol-6-yl) ethan-1-ol;

67 (R) - (2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazo-6-yl) methanol;

68 1- (2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) benzo [ d ] oxazol-6-yl) ethan-1-ol;

69 (R) - (2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) benzo [ d ] oxazol-6-yl) methanol;

70 1- (2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -3H-imidazo [4,5-c ] pyridin-6-yl) ethan-1-ol;

71 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (trifluoromethoxy) -1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

72 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (trifluoromethyl) -3H-imidazo [4,5-c ] pyridine;

73 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) oxazolo [4,5-c ] pyridine;

74 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6-fluoro-1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

75 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) thiazolo [4,5-c ] pyridine;

76 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-imidazo [4,5-d ] pyridazine;

77 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6-methoxy-1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

78 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5, 6-dimethoxy-1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

79 (R) -6- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -2, 2-difluoro-5H- [1,3] dioxazole [4',5':4,5] benzo [1,2-d ] imidazole;

80 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (trifluoromethoxy) benzo [ d ] oxazole;

81 (R) -3- (6- (difluoromethoxy) -1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

82 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6,7,9,10,12,13-hexahydro-1H- [1,4,7,10] tetraoxacyclododecyl [2',3':4,5] benzo [1,2-d ] imidazole;

83 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1-methyl-6, 7-dihydro-1H- [1,4] dioxin [2',3':4,5] benzo [1,2-d ] imidazole;

84 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-3H-imidazo [4,5-b ] pyridine;

85 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-imidazo [4,5-c ] pyridine;

86 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methyl-1H-imidazo [4,5-c ] pyridine;

87 (R) -8- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -7H-purin-6-amine;

88 (R) -8- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -7H-purin-6-ol;

89 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -N-hydroxy-5-methoxy-1H-benzo [ d ] imidazole-6-carboxamide;

90 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazole-6-carboxylic acid;

91 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazole-6-carboxamide;

92 (R) -3- (5-chloro-6- (trifluoromethoxy) -1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

93 1- (2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-fluorobenzene [ d ] oxazol-5-yl) ethan-1-ol;

94 (R) - (2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-fluorobenzene [ d ] oxazol-5-yl) methanol;

95 (R) - (2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -3H-imidazo [4,5-c ] pyridin-6-yl) methanol;

96 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6, 7-dihydro-1H- [1,4] dioxin [2',3':4,5] benzo [1,2-d ] imidazole;

97 (R) -3- (7-chloro-1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

98 (R) -3- (7-chloro-5-fluoro-1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

99 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -7-methyl-1H-imidazo [4,5-c ] pyridine;

100 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4-methoxybenzo [ d ] oxazole;

101 (R) -3- (5, 6-bis (2-methoxyethoxy) -1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

102 (R) -6, 7-dichloro-2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-imidazo [4,5-b ] pyridine;

103 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4-methyl-3H-imidazo [4,5-c ] pyridine;

104 (R) -3- (4, 7-dichloro-1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

105 (R) -3- (5, 6-dichloro-1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

106 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methyl-3H-imidazo [4,5-b ] pyridine;

107 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-6-carbonitrile;

108 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-fluoro-3H-imidazo [4,5-b ] pyridine;

109 (R) -3- (5, 6-bis (difluoromethoxy) -1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

110 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (trifluoromethyl) -1H-imidazo [4,5-b ] pyridine;

111 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5, 7-difluorobenzo [ d ] oxazole;

112 (R) -3- (5-chloro-6-methoxy-1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

113 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (7- (trifluoromethoxy) -1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

114 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5- (trifluoromethyl) -3H-imidazo [4,5-b ] pyridine;

115 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-5, 6-diyl dimethyl bis (carbonate);

116 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6- ((trifluoromethyl) thio) -1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

117 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-5, 6-diol;

118 5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (((R) -tetrahydrofuran-3-yl) oxy) -6- (((S) -tetrahydrofuran-3-yl) oxy) -1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

119 (R) -2,2' - ((2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-5, 6-diyl) bis (oxy)) diacetonitrile;

120 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5, 6-dimethoxy benzo [ d ] oxazole;

121 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-imidazo [4,5-b ] quinoxaline;

122 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -7-methyl-3H-imidazo [4,5-b ] pyridine;

123 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-fluoro-1H-benzo [ d ] imidazole-6-carbonitrile;

124 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1-methyl-1H-imidazo [4,5-c ] pyridine;

125 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazole-6-carbonitrile;

126 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5- (methylsulfanyl) -1H-benzo [ d ] imidazole-6-carbonitrile;

127 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (7-fluoro-6-methoxy-1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

128 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-imidazo [4,5-b ] pyrazine;

129 (R) -6-bromo-2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-imidazo [4,5-b ] pyrazine;

130 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-imidazo [4,5-b ] phenazine;

131 (R) -6- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) - [1,3] dioxazole [4',5':4,5] benzo [1,2-d ] oxazole;

132 2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5,6,7, 8-tetrahydro- [1,2,4] triazol [1,5-a ] pyridin-6-ol;

133 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-indole-5-carbonitrile;

134 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -7, 8-dihydro-1 h,6h- [1,4] dioxepin [2',3':4,5] benzo [1,2-d ] imidazole;

135 (R) - (2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -3H-imidazo [4,5-c ] pyridin-6-yl) methanol;

136 (R) -3- (5, 6-difluoro-1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine;

137 Methyl (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4, 5-difluoro-1H-benzo [ d ] imidazole-6-carboxylate;

138 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4, 5-difluoro-1H-benzo [ d ] imidazole-6-carboxylic acid;

139 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5-fluoro-6- (trifluoromethyl) -1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

140 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-ethoxy-1H-benzo [ d ] imidazole-5-carbonitrile;

141 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-fluoro-1H-benzo [ d ] imidazole-5-carboxylic acid;

142 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (methylamino) -1H-benzo [ d ] imidazole-5-carbonitrile;

143 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-morpholino-1H-benzo [ d ] imidazole-5-carbonitrile;

144 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (dimethylamino) -1H-benzo [ d ] imidazole-5-carbonitrile;

145 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (3-hydroxyazepin-1-yl) -1H-benzo [ d ] imidazole-5-carbonitrile;

146 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5,6,7, 8-tetrahydroimidazo [4',5':4,5] benzo [1,2-e ] [1,4] diazepin-9 (3H) -one;

147 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -7, 8-dihydro-3H-imidazo [4',5':4,5] benzo [1,2-f ] [1,4] oxazepin-9 (6H) -one;

148 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-5, 6-dinitrile;

149 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-hydroxy-1H-benzo [ d ] imidazole-5-carbonitrile;

150 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (2-hydroxyethoxy) -1H-benzo [ d ] imidazole-5-carbonitrile;

151 (R) -6-bromo-2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-5-carbonitrile;

152 Methyl (R) -5-cyano-2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-6-carboxylate;

153 (R) -5-cyano-2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-6-carboxylic acid;

154 (R) -5-cyano-2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-6-carboxamide;

155 Methyl (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carboxylate;

156 (R) -6- (difluoromethoxy) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-5-carbonitrile;

157 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5- (trifluoromethyl) -1H-benzo [ d ] imidazole-6-carbonitrile;

158 Methyl (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-fluoro-1H-benzo [ d ] imidazole-7-carboxylate;

159 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methyl-1H-benzo [ d ] imidazole-5-carbonitrile;

160 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-N-methyl-1H-benzo [ d ] imidazole-5-carboxamide;

161 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-N, N-dimethyl-1H-benzo [ d ] imidazole-5-carboxamide;

162 (R) -4- ((2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazo-5-yl) methyl) morpholine;

163 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (4-methylpiperazin-1-yl) -1H-benzo [ d ] imidazole-5-carbonitrile;

164 2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- ((S) -3-hydroxypyrrolidin-1-yl) -1H-benzo [ d ] imidazole-5-carbonitrile;

165 6- ((S) -2-cyanopyrrolidin-1-yl) -2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-5-carbonitrile;

166 Methyl (5-cyano-2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazo-6-yl) -L-proline;

167 (5-cyano-2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazo-6-yl) -L-proline;

168 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- ((2- (dimethylamino) ethyl) (methyl) amino) -1H-benzo [ d ] imidazole-5-carbonitrile;

169 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (2-methoxyethoxy) -1H-benzo [ d ] imidazole-5-carbonitrile;

170 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6- (methylsulfonyl) -1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidine;

171 2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5- (methylsulfonyl) -1H-benzo [ d ] imidazole-6-carbonitrile;

172 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5- (methylsulfonyl) -1H-benzo [ d ] imidazole-6-carbonitrile;

173 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5- (methylsulfonyl) -1H-benzo [ d ] imidazole-6-carboxamide;

174 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxybenzo [ d ] oxazole-5-carbonitrile;

175 Methyl (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4-fluorobenzo [ d ] oxazole-7-carboxylate;

176 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (trifluoromethoxy) benzo [ d ] oxazole-5-carbonitrile;

177 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-hydroxybenzo [ d ] oxazole-5-carbonitrile;

178 Methyl (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxybenzo [ d ] oxazole-6-carboxylate;

179 (R) -6- (difluoromethoxy) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methylbenzo [ d ] oxazole;

180 (2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxybenzo [ d ] oxazol-5-yl) methyl) -L-proline;

181 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5, 8-dimethoxy- [1,2,4] triazolo [1,5-c ] pyrimidine;

182 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6, 7-dimethoxy- [1,2,4] triazolo [1,5-a ] pyridine;

183 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6-fluoro-1H-indol-2-yl) pyrazolo [1,5-a ] pyrimidine;

184 Methyl (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-indole-5-carboxylate;

185 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-indole-5-carboxylic acid;

186 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-indol-6-ol;

187 (S) -2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5,6,7, 8-tetrahydro- [1,2,4] triazol [1,5-a ] pyridin-7-ol;

188 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -3,4,6, 7-tetrahydropyran [3,4-d ] imidazole;

189 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4,5,6, 7-tetrahydrothiazolo [4,5-c ] pyridine;

190 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4,5,6, 7-tetrahydrothiazolo [5,4-c ] pyridine;

191 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6, 7-dihydrothiazol [5,4-c ] pyridine-5 (4H) -carboxamide;

192 (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6, 7-dihydro-4H-pyran [4,3-d ] thiazole;

193 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5, 6-dimethoxy-1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidin-2-amine;

194 (R) -2- (2-amino-5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazole-6-carbonitrile;

195 (R) -2- (5- (2- (2-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile;

196 (R) -2- (5- (2- (3-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile;

197 (S) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile;

198 (R) -2- (5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile;

199 (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6, 7-dimethoxyimidazo [1,2-a ] pyridin-2-yl) pyrazolo [1,5-a ] pyrimidine; or (b)

200 (R) -3- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5, 6-dihydro-8H- [1,2,4] triazolo [3,4-c ] [1,4] oxazine.

The present invention also provides a pharmaceutical composition comprising any one of the compounds of the present invention or a pharmaceutically acceptable salt or stereoisomer thereof, and at least one pharmaceutically acceptable carrier or excipient.

The invention further provides a method of inhibiting Trk comprising wild type TrkA, trkB and TrkC, trkA G595R, trkA G667C, trkA a608D, trkA F589L and TrkC G623R, the method comprising administering to a patient any one of the compounds of the invention or a pharmaceutically acceptable salt or isomer thereof.

The invention further provides a method of treating a disease associated with inhibition of Trk, including wild type TrkA, trkB and TrkC, trkA G595R, trkA G667C, trkA a608D, trkA F589L and TrkC G623R. The method comprises providing to a patient in need thereof a therapeutically effective amount of any one of the compounds of the present invention, or a pharmaceutically acceptable salt or isomer thereof. Wherein the disease is breast analog secretory carcinoma (MASC) of salivary glands, fibrosarcoma of infants, schlemma, colon cancer, gastric cancer, thyroid cancer (e.g., papillary thyroid cancer), lung cancer, leukemia, pancreatic cancer, melanoma (e.g., multiple melanoma), brain cancer (e.g., desmohyoid), renal cancer (e.g., congenital mesodermal nephroma), prostate cancer, ovarian cancer, or breast cancer (e.g., secretory breast cancer).

The present invention provides a method of inhibiting Trk in a patient, the method comprising administering to a patient in need thereof a therapeutically effective amount of a compound of the present invention or a pharmaceutically acceptable salt or isomer thereof.

The invention also provides application of the compound or the pharmaceutical composition thereof in preparing medicines.

In some embodiments, wherein the medicament is for use in the preparation of a medicament for treating or preventing cancer.

In some embodiments, wherein the cancer is breast analog secretory cancer (MASC) of salivary glands, fibrosarcoma in infants, schlemma, colon cancer, gastric cancer, thyroid cancer (e.g., papillary thyroid cancer), lung cancer, leukemia, pancreatic cancer, melanoma (e.g., multiple melanoma), brain cancer (e.g., desmoglycoma), renal cancer (e.g., congenital mesodermal kidney tumor), prostate cancer, ovarian cancer, or breast cancer (e.g., secretory breast cancer).

In some embodiments, wherein the medicament is used as an inhibitor of Trk.

In some embodiments, wherein Trk is wild-type TrkA, trkB, trkC or TrkA G595R, trkA G667C, trkA a608D, trkA F589L, or TrkC G623R.

The present invention also provides a method of enhancing, stimulating and/or increasing an immune response in a patient, the method comprising administering to a patient in need thereof a therapeutically effective amount of a compound of the present invention or a pharmaceutically acceptable salt or isomer thereof.

The general chemical terms used in the above general structural formulae have their usual meanings. For example, the term "halogen" as used herein refers to fluorine, chlorine, bromine or iodine unless otherwise indicated. Preferred halogen groups include fluorine, chlorine and bromine.

Herein, unless otherwise indicated, "alkyl" includes straight or branched monovalent saturated hydrocarbon groups. For example, alkyl groups include methyl, ethyl, propyl, isopropyl,N-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, 3- (2-methyl) butyl, 2-pentyl, 2-methylbutyl, neopentyl, n-hexyl, 2-methylpentyl and the like. Similarly, "C _1-8 "C in" alkyl _1-8 "refers to a group comprising an array of straight or branched chain forms of 1, 2, 3, 4, 5, 6, 7 or 8 carbon atoms.

Alkenyl and alkynyl include straight or branched alkenyl and alkynyl groups. Similarly, "C _2-8 Alkenyl groups "and" C _2-8 Alkynyl "refers to alkenyl or alkynyl groups containing 2, 3, 4, 5, 6, 7 or 8 carbon atoms arranged in a straight or branched chain.

Alkoxy is an oxyether formed from the aforementioned straight, branched or cyclic alkyl groups.

The term "aryl", as used herein, unless otherwise indicated, refers to an unsubstituted or substituted monocyclic or fused ring aromatic group comprising atoms of a carbocyclic ring. Preferably aryl is a 6 to 10 membered monocyclic or bicyclic aromatic ring group. Phenyl and naphthyl are preferred. Most preferred is phenyl.

The term "heterocyclyl", as used herein, unless otherwise indicated, refers to an unsubstituted or substituted 3-8 membered stable saturated monocyclic system consisting of carbon atoms and 1-3 heteroatoms selected from N, O or S, wherein the nitrogen or sulfur heteroatoms may be optionally oxidized and the nitrogen heteroatoms may be optionally quaternized. The heterocyclic group may be attached to any heteroatom or carbon atom that results in the formation of a stable structure. Examples of such heterocyclic groups include, but are not limited to, azetidinyl, pyrrolidinyl, piperidinyl, piperazinyl, oxopiperazinyl, oxopiperidinyl, tetrahydrofuranyl, dioxolanyl, tetrahydroimidazolyl, tetrahydrothiazolyl, tetrahydrooxazolyl, tetrahydropyranyl, morpholinyl, thiomorpholinyl sulfoxide, thiomorpholinyl sulfone, and tetrahydrooxadiazolyl.

The term "heteroaryl", as used herein, unless otherwise indicated, refers to an unsubstituted or substituted stable five-or six-membered monocyclic aromatic ring system or an unsubstituted or substituted nine-or ten-membered benzofused heteroaromatic ring system or a bicyclic heteroaromatic ring system consisting of carbon atoms and 1 to 4 heteroatoms selected from N, O or S, and wherein the nitrogen or sulfur heteroatoms may be optionally oxidized and the nitrogen heteroatoms may be optionally quaternized. Heteroaryl groups may be attached to any heteroatom or carbon atom that results in the formation of a stable structure. Examples of heteroaryl groups include, but are not limited to, thienyl, furyl, imidazolyl, isoxazolyl, oxazolyl, pyrazolyl, pyrrolyl, thiazolyl, thiadiazolyl, triazolyl, pyridyl, pyridazinyl, indolyl, azaindolyl, indazolyl, benzimidazolyl, benzofuryl, benzothienyl, benzisoxazolyl, benzothiazolyl, benzothiadiazolyl, benzotriazolyladenine, quinolinyl, or isoquinolinyl.

The term "alkenyloxy" refers to an-O-alkenyl group, wherein alkenyl is as defined above.

The term "alkynyloxy" refers to an-O-alkynyl group, wherein alkenyl is as defined above.

The term "cycloalkyl" refers to a cyclic saturated alkyl chain having 3 to 12 carbon atoms, for example, cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl.

The term "substituted" means that one or more hydrogen atoms in the group are each replaced by the same or different substituents. Typical substituents include, but are not limited to, halogen (F, cl, br or I), C _1-8 Alkyl, C _3-12 Cycloalkyl, -OR ¹ 、-SR ¹ 、＝O、＝S、-C(O)R ¹ 、-C(S)R ¹ 、＝NR ¹ 、-C(O)OR ¹ 、-C(S)OR ¹ 、-NR ¹ R ² 、-C(O)NR ¹ R ² Cyano, nitro, -S (O) ₂ R ¹ 、-O-S(O ₂ )OR ¹ 、-O-S(O) ₂ R ¹ 、-OP(O)(OR ¹ )(OR ² ) The method comprises the steps of carrying out a first treatment on the surface of the Wherein R is ¹ And R is ² Independently selected from-H, C _1-6 Alkyl, C _1-6 A haloalkyl group. In some embodiments of the present invention, in some embodiments, the substituents are independently selected from the group consisting of-F, -Cl, -Br, -I, -OH, trifluoromethoxy, ethoxy propoxy, isopropoxy, n-butoxy, isobutoxy, tert-butoxy, -SCH ₃ 、-SC ₂ H ₅ Formaldehyde, -C (OCH) ₃ ) Cyano, nitro, -CF ₃ 、-OCF ₃ Amino, dimethylamino, methylthio, sulfonyl and acetyl groups.

The term "composition" is meant herein to include products comprising the specified amounts of each specified ingredient as well as any product that results, directly or indirectly, from combination of the specified amounts of each specified ingredient. Thus, pharmaceutical compositions containing the compounds of the present invention as active ingredients and methods of preparing the compounds of the present invention are also part of the present invention. Furthermore, some crystalline forms of the compounds may exist as polymorphs, and such polymorphs are included in the present invention. In addition, some compounds may form solvates with water (i.e., hydrates) or common organic solvents, and such solvates are also within the scope of the invention.

Examples of substituted alkyl groups include, but are not limited to, 2-aminoethyl, 2-hydroxyethyl, pentachloroethyl, trifluoromethyl, methoxymethyl, pentafluoroethyl, and piperazinylmethyl.

Examples of substituted alkoxy groups include, but are not limited to, aminomethoxy, trifluoromethoxy, 2-diethylaminoethoxy, 2-ethoxycarbonylethoxy, 3-hydroxypropoxy.

The compounds of the present invention may also exist in the form of pharmaceutically acceptable salts. For pharmaceutical use, salts of the compounds of the present invention are referred to as non-toxic "pharmaceutically acceptable salts". Pharmaceutically acceptable salt forms include pharmaceutically acceptable acid/anion or base/cation salts. Pharmaceutically acceptable acid/anion salts are generally present in the protonated form of basic nitrogen with inorganic or organic acids. Typical organic or inorganic acids include hydrochloric acid, hydrobromic acid, hydroiodic acid, perchloric acid, sulfuric acid, nitric acid, phosphoric acid, acetic acid, propionic acid, glycolic acid, lactic acid, succinic acid, maleic acid, fumaric acid, malic acid, tartaric acid, citric acid, benzoic acid, mandelic acid, methanesulfonic acid, isethionic acid, benzenesulfonic acid, oxalic acid, pamoic acid, 2-naphthalenesulfonic acid, p-toluenesulfonic acid, cyclohexylamine sulfonic acid, salicylic acid, saccharin acid or trifluoroacetic acid. Pharmaceutically acceptable base/cation salts include, but are not limited to, aluminum salts, calcium salts, chloroprocaine salts, choline, diethanolamine salts, ethylenediamine, lithium salts, magnesium salts, potassium salts, sodium salts, and zinc salts.

Prodrugs of the compounds of the present invention are included within the scope of the present invention. Typically, the prodrug refers to a functional derivative that is readily converted in vivo to the desired compound. Thus, the term "administration" in the methods of treatment provided herein refers to the administration of a compound disclosed herein that is capable of treating a different disease or, although not explicitly disclosed, of being converted in vivo to a compound disclosed herein upon administration to a subject. Conventional methods for the selection and preparation of suitable prodrug derivatives have been described in, for example, the book "prodrug design" (Design of Prodrugs, ed.H.Bundgaard, elsevier, 1985).

Obviously, the definition of any substituent or variable at a particular position in a molecule is independent of the other positions in the molecule. It will be readily appreciated that one of ordinary skill in the art can select substituents or substituted forms of the compounds of the invention by prior art means and methods described herein to obtain chemically stable and readily synthesized compounds.

The compounds of the present invention may contain one or more asymmetric centers and may thus produce diastereomers and optical isomers. The present invention includes all possible diastereomers and racemic mixtures thereof, substantially pure resolved enantiomers thereof, all possible geometric isomers, and pharmaceutically acceptable salts thereof.

The above formula (I) does not define exactly the steric structure of a certain position of the compound. The invention includes all stereoisomers of the compounds of formula (I) and pharmaceutically acceptable salts thereof. Further, mixtures of stereoisomers and isolated specific stereoisomers are also included in the invention. During the synthesis of preparing such compounds, or using racemization or epimerization as known to those of ordinary skill in the art, the resulting product may be a mixture of stereoisomers.

When a tautomer of the compound of formula (I) exists, the present invention includes any of the possible tautomers and pharmaceutically acceptable salts thereof, and mixtures thereof, unless otherwise indicated.

The present invention includes all isomers of formulas III and IV and pharmaceutically acceptable salts thereof. In addition, mixtures of isomers and isolated specific isomers are included. During the synthetic methods known to those skilled in the art for preparing the present invention, both isomers may be obtained by ring closure reactions. For example, the carboxyl group of compound 7-4 reacts with one of the two amino groups of compound 163-3, and then two isomers, namely, compound 163 and its isomer, and possibly a mixture thereof can be obtained. Wherein the isomer may be a stereoisomer or a tautomer.

When the compounds of formula (I) and pharmaceutically acceptable salts thereof exist in solvates or polymorphs, the present invention includes any possible solvates and polymorphs. The type of solvent forming the solvate is not particularly limited as long as the solvent is pharmacologically acceptable. For example, water, ethanol, propanol, acetone, and the like may be used.

The term "pharmaceutically acceptable salt" refers to salts prepared from pharmaceutically acceptable non-toxic bases or acids. When the compounds provided herein are acids, the corresponding salts thereof can be conveniently prepared from pharmaceutically acceptable non-toxic bases, including inorganic and organic bases. Salts derived from inorganic bases include salts of aluminum, ammonium, calcium, copper (both higher and lower), ferric, ferrous, lithium, magnesium, manganese (both higher and lower), potassium, sodium, zinc and the like. Particularly preferred are salts of ammonium, calcium, magnesium, potassium and sodium. Pharmaceutically acceptable non-toxic organic bases capable of being derivatized to form salts include primary, secondary and tertiary amines, as well as cyclic amines and substituent-containing amines, such as naturally occurring and synthetic substituent-containing amines. Other pharmaceutically acceptable non-toxic organic bases capable of salt formation include ion exchange resins as well as arginine, betaine, caffeine, choline, N' -dibenzylethylenediamine, diethylamine, 2-diethylaminoethanol, 2-dimethylaminoethanol, ethanolamine, ethylenediamine, N-ethylmorpholine, N-ethylpiperidine, reduced glucosamine, histidine, halamine, isopropylamine, lysine, methylglucamine, morpholine, piperazine, piperidine, polyamine resins, procaine, purines, theobromine, triethylamine, trimethylamine, tripropylamine, tromethamine, and the like.

When the compounds provided by the present invention are bases, the corresponding salts thereof can be conveniently prepared from pharmaceutically acceptable non-toxic acids, including inorganic and organic acids. Such acids include, for example, acetic acid, benzenesulfonic acid, benzoic acid, camphorsulfonic acid, citric acid, ethanesulfonic acid, formic acid, fumaric acid, gluconic acid, glutamic acid, hydrobromic acid, hydrochloric acid, isethionic acid, lactic acid, maleic acid, malic acid, mandelic acid, methanesulfonic acid, mucic acid, nitric acid, pamoic acid, pantothenic acid, phosphoric acid, succinic acid, sulfuric acid, tartaric acid, p-toluenesulfonic acid and the like. Preferably, citric acid, hydrobromic acid, formic acid, hydrochloric acid, maleic acid, phosphoric acid, sulfuric acid and tartaric acid. More preferably formic acid and hydrochloric acid. Since the compounds of formula (I) will be used as pharmaceuticals, it is preferable to use a purity, for example, of at least 60%, more suitably at least 75%, and particularly suitably at least 98% (% by weight).

The pharmaceutical composition provided by the invention comprises a compound (or pharmaceutically acceptable salt thereof) shown in a formula (I) as an active component, a pharmaceutically acceptable excipient and other optional therapeutic components or auxiliary materials. Although the most suitable mode of administration of the active ingredient in any given case will depend on the particular subject, nature of the subject and severity of the condition being administered, the pharmaceutical compositions of the present invention include those suitable for oral, rectal, topical and parenteral (including subcutaneous, intramuscular, intravenous) administration. The pharmaceutical compositions of the present invention may be conveniently presented in unit dosage form well known in the art and prepared by any of the methods of manufacture well known in the pharmaceutical arts.

In fact, the compounds of formula (I) of the present invention, or prodrugs, or metabolites, or pharmaceutically acceptable salts thereof, may be admixed with pharmaceutical carriers as active ingredients to pharmaceutical compositions according to conventional pharmaceutical compounding techniques. The pharmaceutical carrier may take a variety of forms depending on the mode of administration desired to be employed, for example, orally or by injection (including intravenous injection). Thus, the pharmaceutical compositions of the present invention may be employed as separate units suitable for oral administration, such as capsules, cachets or tablets containing the predetermined dose of the active ingredient. Further, the pharmaceutical compositions of the present invention may take the form of powders, granules, solutions, aqueous suspensions, non-aqueous liquids, oil-in-water emulsions, or water-in-oil emulsions. In addition, in addition to the usual dosage forms mentioned above, the compounds of formula (I) or pharmaceutically acceptable salts thereof may also be administered by means of controlled release and/or delivery means. The pharmaceutical compositions of the present invention may be prepared by any pharmaceutical method. Typically, such methods include the step of associating the active ingredient with a carrier that constitutes one or more of the necessary ingredients. Typically, the pharmaceutical compositions are prepared by uniformly intimately bringing into association the active ingredient with liquid carriers or finely divided solid carriers or a mixture of the two. In addition, the product can be conveniently prepared to a desired appearance.

Accordingly, the pharmaceutical compositions of the present invention comprise a pharmaceutically acceptable carrier and a compound of formula (I) or an isomer, stereoisomer, tautomer, polymorph, solvate, pharmaceutically acceptable salt thereof, prodrug thereof. Combinations of a compound of formula (I) or an isomer, pharmaceutically acceptable salt thereof, with one or more other therapeutically active compounds are also included in the pharmaceutical compositions of the present invention.

The pharmaceutical carrier employed in the present invention may be, for example, a solid carrier, a liquid carrier or a gaseous carrier. Solid carriers including lactose, terra alba, sucrose, talc, gelatin, agar, pectin, acacia, magnesium stearate, stearic acid. Liquid carriers include syrup, peanut oil, olive oil, and water. And a gas carrier including carbon dioxide and nitrogen. Any pharmaceutically convenient medium can be used in the preparation of the pharmaceutical oral preparation. For example, water, glycols, oils, alcohols, flavoring agents, preservatives, coloring agents and the like may be used in liquid preparations for oral administration such as suspensions, elixirs and solutions; and carriers such as starches, sugars, microcrystalline cellulose, diluents, granulating agents, lubricants, binders, disintegrating agents and the like may be used in the oral solid preparations such as powders, capsules and tablets. In view of ease of administration, oral formulations are preferably tablets and capsules, where solid pharmaceutical carriers are employed. Alternatively, tablet coatings may use standard aqueous or non-aqueous formulation techniques.

Tablets containing a compound or pharmaceutical composition of the invention may be formed by compression or molding, optionally together with one or more accessory ingredients or adjuvants, into tablets. The active ingredient is in free-flowing form, such as a powder or granules, and is admixed with a binder, lubricant, inert diluent, surfactant or dispersant, and compressed tablets may be made by compression in a suitable machine. Molded tablets may be made by molding in a suitable machine a powdered compound or pharmaceutical composition moistened with an inert liquid diluent. Preferably, each tablet contains about 0.05mg to 5g of active ingredient and each cachet or capsule contains about 0.05mg to 5g of active ingredient. For example, formulations intended for oral administration to humans comprise from about 0.5mg to about 5g of the active ingredient in combination with suitable and conveniently metered auxiliary materials, which constitute from about 5% to 95% of the total pharmaceutical composition. The unit dosage form generally contains from about 1mg to about 2g of the active ingredient, typically 25mg, 50mg, 100mg, 200mg, 300mg, 400mg, 500mg, 600mg, 800mg or 1000mg.

The pharmaceutical compositions provided herein suitable for parenteral administration may be prepared as aqueous solutions or suspensions of the active ingredient in water. Suitable surfactants such as hydroxypropyl cellulose may be included. Dispersions can also be prepared in glycerol, liquid polyethylene glycols, and mixtures thereof in oils. Further, preservatives may also be included in the pharmaceutical compositions of the present invention to prevent the growth of detrimental microorganisms.

The present invention provides pharmaceutical compositions suitable for injection, including sterile aqueous solutions or dispersions. Further, the above pharmaceutical composition may be prepared in the form of a sterile powder for use in the ready-to-use formulation of sterile injectable solutions or dispersions. In any event, the final injection form must be sterile and must be readily flowable for ease of injection. Furthermore, the pharmaceutical composition must be stable during preparation and storage. Thus, preferably, the pharmaceutical composition is to be preserved against microbial, such as bacterial and fungal contamination. The carrier may be a solvent or dispersion medium, for example, water, ethanol, polyols (such as glycerol, propylene glycol, liquid polyethylene glycol), vegetable oils, and suitable mixtures thereof.

The pharmaceutical compositions provided herein may be in a form suitable for topical administration, for example, as an aerosol, cream, ointment, lotion, dusting powder, or other similar dosage form. Further, the pharmaceutical composition provided by the present invention may take a form suitable for use with a transdermal drug delivery device. These formulations can be prepared by conventional processing methods using the compounds of formula (I) of the present invention, or pharmaceutically acceptable salts thereof. As an example, a cream or ointment is prepared with the desired consistency by adding about 5wt% to about 10wt% of hydrophilic material and water.

The pharmaceutical composition provided by the invention can take solid as a carrier and is suitable for rectal administration. Unit dose suppositories are the most typical dosage forms. Suitable adjuvants include cocoa butter and other materials commonly used in the art. Suppositories may be conveniently prepared by first mixing the pharmaceutical composition with the softened or melted excipients and then cooling and molding the mixture.

In addition to the above-mentioned adjuvant components, the formulation may include, as appropriate, one or more additional adjuvant components such as diluents, buffers, flavoring agents, binders, surfactants, thickeners, lubricants, preservatives (including antioxidants), and the like. Further, other adjuvants may also include permeation enhancers that regulate the isotonic pressure of the drug and blood. Pharmaceutical compositions comprising a compound of formula (I), or a pharmaceutically acceptable salt thereof, may be prepared in the form of a powder or concentrate.

Typically, the dosage level of the drug is about 0.01mg/kg body weight to 150mg/kg body weight per day, or 0.5mg to 7g per patient per day, for the treatment of the conditions or discomfort indicated above. For example, colon cancer, rectal cancer, mantle cell lymphoma, multiple myeloma, breast cancer, prostate cancer, glioblastoma, squamous cell esophageal cancer, liposarcoma, T-cell lymphoma melanoma, pancreatic cancer or lung cancer, at a drug dosage level of 0.01mg/kg body weight to 50mg/kg body weight per day, or 0.5mg to 3.5g per patient per day.

However, it will be appreciated that lower or higher doses than those described above may be required. The specific dosage level and treatment regimen for any particular patient will depend upon a variety of factors including the activity of the particular compound employed, the age, body weight, general health, sex, diet, time of administration, route of administration, rate of excretion, drug combination and the severity of the particular disease undergoing therapy.

These and other aspects will become apparent from the following written description of the invention.

The following examples are provided to better illustrate the invention. All parts and percentages are by weight and all temperatures are degrees celsius unless explicitly stated otherwise.

The present invention will be described in more detail by means of specific examples. The following examples are provided for illustrative purposes and are not intended to limit the invention in any way. Those skilled in the art will readily recognize various non-critical parameters that may be changed or modified to produce substantially the same results. The compounds of the examples were found to inhibit Trk according to at least one of the assays described herein.

Examples

Experimental procedures for the compounds of the present invention are provided below.

The following abbreviations are used in the examples:

AcOH: acetic acid;

DCM: dichloromethane;

DIBAL-H: diisobutyl aluminum hydride;

DIEA: n, N-diisopropylethylamine;

DMF: dimethylformamide;

DMAP: 4-dimethylaminopyridine;

DMSO: dimethyl sulfoxide;

EA: ethyl acetate;

EDTA: ethylenediamine tetraacetic acid;

HATU: tetramethyl urea hexafluorophosphate;

HEPES:4- (2-hydroxyethyl) -1-piperazineethanesulfonic acid;

LCMS: liquid chromatography-mass spectrometry;

h or hrs: an hour or hours;

PE: petroleum ether;

MeOH: methanol;

min: minutes;

NCS: n-chlorosuccinimide;

rt or R.T: room temperature;

TFA: trifluoroacetic acid;

THF: tetrahydrofuran;

TLC: preparing thin layer chromatography;

1N：1mol.L ^-1 ，(2N:2mol.L ^-1 etc.).

Example 7: synthesis of Compound 7

(R) -2- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) propan-2-ol

Step 1: preparation of ethyl (R) -5- (2- (2-chloro-5-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylate

To a solution of (R) -2- (2, 5-difluorophenyl) pyrrolidine hydrochloride (76 g) in 1-BuOH (1L) were added ethyl 5-chloropyrazolo [1,5-a ] pyrimidine-3-carboxylate (78 g) and DIEA (89 g). The mixture was heated to 120 ℃ and reacted for 14h. Monitored by LCMS until the reaction was complete.

The mixture was concentrated under reduced pressure to remove 1-BuOH, the residue was poured into ice water and extracted with EA (300 mL. Times.3), the organic layers were combined, washed with brine and dried over Na ₂ SO ₄ And (5) drying. Concentrated in vacuo and the residue washed with hexane (500 mL) to give the final product ethyl (R) -5- (2- (2-chloro-5-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a)]Pyrimidine-3-carboxylic acid ester (122 g, 95%) as white colorA solid.

Step 2: preparation of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylic acid

To a solution of ethyl (R) -5- (2- (2-chloro-5-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylate (122 g) in EtOH (1L) was added an aqueous solution of LiOH (1M, 1L). The reaction mixture was heated to 80℃and reacted for 8 hours. Monitored by LCMS until the reaction was complete.

The mixture was concentrated in vacuo to remove EtOH, water (1L) was added to the residue and acidified with HCl (1M) to ph=4-5, filtered, and the solid was washed with water and dried in vacuo to give the final product (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylic acid (110 g, 98%) as a white solid.

Step 3: preparation of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxamide

To (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]HATU (146 g), DIEA (82 g) and NH were added to a solution of pyrimidine-3-carboxylic acid (110 g) in DMF (1L) ₄ Cl (85 g). The mixture was stirred at room temperature for 8 hours. Monitored by LCMS until the reaction was complete.

The reaction was poured into water (3L) and extracted with EA (1L. Times.5), the organic layers were combined and washed with brine (1L. Times.3), dried over Na ₂ SO ₄ And (5) drying. Concentrating under reduced pressure to obtain final product (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]Pyrimidine-3-carboxamide (105 g, 96%) as a yellow solid.

Step 2: preparation of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-thioamide

To a solution of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxamide (105 g) in dioxane (1L) was added Lawesson's reagent (210 g) and the mixture was heated to 100℃for 3 hours. Monitored by LCMS until the reaction was complete.

The reaction mixture was cooled to room temperature and filtered, the solid was washed with dioxane, the filtrate was concentrated and the residue was purified by combi flash (DCM: meOH gradient 100%:0 to 95%: 5%) to give the final product (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-thioamide (85 g, 78%) as a yellow solid.

Step 5: preparation of methyl (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboiminomethylthio ester

To (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]To a solution of pyrimidine-3-thioamide (78 g) in MeOH (800 mL) was added CH ₃ I (46 g), the mixture was heated to 80℃and reacted for 2 hours. Monitored by LCMS until the reaction was complete. The reaction mixture was concentrated in vacuo and the residue was purified by combi flash (DCM: meOH gradient from 100%:0 to 90%: 10%) to give the final product methyl (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]Pyrimidine-3-carboiminomethylthio ester (90 g, 83%) as a yellow solid.

Step 6: preparation of (R) -2- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) propan-2-ol (compound 7)

To methyl (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]Pyrimidine-3-carboiminomethylthio esterTo a solution of hydroiodinated salt (5 g) in pyridine (50 mL) was added 2-hydroxy-2-methylpropanazide (2.37 g), and the mixture was heated to 110℃overnight. Monitored by LCMS until the reaction was complete. The reaction mixture was concentrated under reduced pressure to remove pyridine. The residue was purified by combi flash (DCM: meOH gradient 100%:0 to 90%: 10%) to give 3.48g of the title compound (61% yield). MS (ES) ⁺ ):m/z＝426.42(M+H) ⁺

¹ H NMR(500MHz,CD ₃ OD)δ8.62-8.30(m,2H),7.19(s,1H),7.13-6.88(m,2H),6.65and6.11(1H,s+s),5.70and 5.35(1H,s+s),4.27-3.71(m,2H),2.57(s,1H),2.31-1.95(m,3H),1.63(s,6H)。

EXAMPLE 42 Synthesis of Compound 42

(R) - (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) (phenyl) methanol

Step 1: preparation of (S) -2-hydroxy-2-phenylacetyl hydrazine

To a solution of methyl (S) -2-hydroxy-2-phenylacetate (166 mg) in MeOH (10 mL) was added hydrazine hydrate (200 mg), and the mixture was heated to 80 ℃ and stirred overnight. Monitored by LCMS until the reaction was complete. The reaction mixture was concentrated in vacuo to give the final product (S) -2-hydroxy-2-phenylacetyl hydrazine (100 mg, 60%) as a yellow oil.

Step 2: preparation of (S) - (5- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) (phenyl) methanol

To a solution of (S) -2-hydroxy-2-phenylacetylhydrazine (100 mg) in pyridine (10 mL) was added methyl (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]Pyrimidine-3-carboiminomethylthio ester (100 mg), the mixture was heated to 110℃overnight. Monitored by LCMS until the reaction was complete. Will beThe reaction mixture was concentrated in vacuo and the residue was purified by combi flash (DCM: meOH gradient 100%:0 to 90%: 10%) to give 60mg (44.7% yield) of the title compound. MS (ES) ⁺ ):m/z＝474.5(M+H) ⁺

¹ H NMR(500MHz,CD ₃ OD)δ8.65-8.32(m,2H),7.38-7.18(m,6H),7.12-6.83(m,2H),6.63and 6.11(1H,s+s),5.86(s,1H),5.71and 5.33(1H,s+s),4.27-3.71(m,2H),2.57(s,1H),2.30-1.93(m,3H)。

EXAMPLE 45 Synthesis of Compound 45

(R) -6- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) benzo [ c ] [1,2] oxaborol-1 (3H) -ol

Step 1: preparation of tert-butyl 2- (1-hydroxy-1, 3-dihydrobenzo [ c ] [1,2] oxaborole-6-carbonyl) hydrazine-1-carboxylate

To 1-hydroxy-1, 3-dihydrobenzo [ c ]][1,2]To a solution of oxaborole-6-carboxylic acid (178 g) in DMF (10 mL) were added HATU (572 mg), DIEA (259 mg) and tert-butylhydrazinecarboxylic acid ester (158 mg), and the mixture was stirred at room temperature overnight. Monitored by LCMS until the reaction was complete. The reaction mixture was poured into water (50 mL) and extracted with EA (30 ml×3), the organic layers were combined, washed with brine, and Na ₂ SO ₄ And (5) drying. Concentrated in vacuo and the residue was purified by combi flash (PE: EA gradient 100%:0 to 50%: 50%) to give the final product tert-butyl 2- (1-hydroxy-1, 3-dihydrobenzo [ c ]][1,2]Oxaborole-6-carbonyl) hydrazine-1-carboxylate (120 mg, 41%) as a white solid.

Step 2: preparation of 1-hydroxy-1, 3-dihydrobenzo [ c ] [1,2] oxaborole-6-carbohydrazide hydrochloride

To tert-butyl 2- (1-hydroxy-1, 3-dihydrobenzo [ c ] [1,2] oxaborole-6-carbonyl) hydrazine-1-carboxylate (120 mg) was added a solution of HCl in dioxane (4M), and the mixture was stirred for 2h. Monitored by LCMS until the reaction was complete. The reaction mixture was concentrated in vacuo to give the final product 1-hydroxy-1, 3-dihydrobenzo [ c ] [1,2] oxaborole-6-carbohydrazide hydrochloride (90 mg, 97%) as a yellow solid.

Step 3: preparation of (R) -6- (5- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4H-1,2, 4-triazol-3-yl) benzo [ c ] [1,2] oxaborol-1 (3H) -ol (compound 45)

To 1-hydroxy-1, 3-dihydrobenzo [ c ]][1,2]To a solution of oxaborole-6-carbohydrazide hydrochloride (90 mg) in pyridine (10 mL) was added methyl (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]Pyrimidine-3-carboiminomethylthio ester (100 mg), the mixture was heated to 110℃overnight. Monitored by LCMS until the reaction was complete. The reaction mixture was concentrated in vacuo and the residue was purified by combi flash (DCM: meOH gradient 100%:0 to 90%: 10%) to give 40mg (2% yield) of the title compound. MS (ES) ⁺ ):m/z＝500.3(M+H) ⁺ 。

¹ H NMR(500MHz,CD ₃ OD)δ8.71-8.42(m,3H),7.70(s,1H),7.47(d,J＝8.1Hz,1H),7.20(s,1H),7.12-6.85(m,2H),6.61and 6.10(1H,s+s),5.71and 5.37(1H,s+s),5.12(s,2H),4.29-3.74(m,2H),2.56(s,1H),2.33-1.92(m,3H)。

The following examples (as shown in table 1) were prepared essentially as described in example 45 using the corresponding starting materials. For example, substantially as described in example 45, usingReplace->The following example 1 (shown in Table 1) was prepared and the other starting materials were available commercially, or by publicKnown methods in the literature or prepared as shown.

TABLE 1

EXAMPLE 94 Synthesis of Compound 94

(R) - (2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-fluorobenzene [ d ] oxazol-5-yl)

Methanol

Step 1: preparation of (R) -methyl 2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-fluorophenyl [ d ] oxazole-5-carboxylate

To (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]POCl of pyrimidine-3-carboxylic acid (365.8 mg) ₃ Methyl 5-amino-2-fluoro-4-hydroxybenzoate (203.6 mg) was added to the (5 mL) solution, and the mixture was heated to 100deg.C and reacted for 3 hours. The reaction was monitored by TLC and LCMS. The mixture was then concentrated in vacuo and the residue was adjusted to ph=8 and purified by combi flash (DCM: meOH gradient 100%:0to 93%: 7%) to give the crude (R) -methyl 2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a)]Pyrimidin-3-yl) -6-fluorophenyl [ d]Oxazole-5-carboxylic acid ester (193.6 mg, 37%) as a yellow solid.

Step 2: preparation of (R) - (2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-fluorophenyl [ d ] oxazol-5-yl) methyl alcohol

To (R) -methyl 2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]Pyrimidin-3-yl) -6-fluorophenyl [ d]To a solution of oxazole-5-carboxylate (193.6 mg) in THF (3 mL) was added DIBAL-H (1 mL) and reacted at 0 ℃ for 1H. The reaction was monitored by TLC and LCMS, and saturated NH was added to the mixture ₄ Cl solution (3 mL) and ethyl acetate. The mixture was extracted with ethyl acetate (3X 15 mL) and the organic layer was dried over Na ₂ SO ₄ The mixture was dried over sodium sulfate. The residue was concentrated in vacuo and purified by combi flash (DCM: meOH gradient 100%:0 to 95%: 5%) to give 56.3mg (31% yield) of the title compound. MS (ES) ⁺ ):m/z＝466.4(M+H) ⁺

¹ H NMR(500MHz,CD ₃ OD)δ8.61-8.28(m,2H),7.74(s,1H),7.19(s,1H),7.16-6.90(m,3H),6.60and 6.12(1H,s+s),5.73and 5.36(1H,s+s),4.61(s,2H),4.30-3.68(m,2H),2.57(s,1H),2.31-1.95(m,3H)。

The following examples (shown in table 2) were prepared essentially as described in example 94 using the corresponding starting materials.

TABLE 2

EXAMPLE 101 Synthesis of Compound 101

(R) -3- (5, 6-bis (2-methoxyethoxy) -1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine

Step 1: preparation of 4, 5-bis (2-methoxyethoxy) -2-nitrobenzoic acid

To a solution of methyl 4, 5-bis (2-methoxyethoxy) -2-nitrobenzoate (986.5 mg) in MeOH (15 mL) was added H ₂ O (3 mL) and KOH (526.7 mg) were reacted at room temperature for 6h. The reaction was monitored by TLC and LCMS. The mixture was then concentrated in vacuo and the residue was adjusted to ph=6, and the residue was purified by combi flash (DCM: meOH gradient 100%:0 to 93%: 7%) to give the crude 4, 5-bis (2-methoxyethoxy) -2-nitrobenzoic acid (726.5 mg, 77%) as a yellow solid.

Step 2: preparation of tert-butyl (4, 5-bis (2-methoxyethoxy) -2-nitrobenzene) carbamate

To a solution of 4, 5-bis (2-methoxyethoxy) -2-nitrobenzoic acid (722.8 mg) in THF (15 mL) was added Et ₃ N (687.3 mg) and DPPA (628.1 mg) were reacted at room temperature for 12h. Detection by TLC and LCMS. The mixture was then concentrated in vacuo and the residue was added t-BuOH (10 mL) and reacted at 80℃for 6h. The reaction was detected by TLC and LCMS. The mixture was then concentrated in vacuo and the residue concentrated. Combi flash purification (PE: EA gradient 100%:0 to 66%: 34%) afforded crude 4, 5-bis (2-methoxyethoxy) -2-nitrophenyl carbamate (586.2 mg, 73%) as a yellow solid.

Step 3: preparation of 4, 5-bis (2-methoxyethoxy) -2-nitroaniline

To a solution of 4, 5-bis (2-methoxyethoxy) -2-nitrobenzene) carbamate (580.2 mg) in dioxane (2 mL) was added HCl dioxane (8 mL) and the reaction stirred at room temperature for 13h. The reaction was monitored by TLC and LCMS. The mixture was then concentrated in vacuo and the residue was adjusted to ph=8 to give the crude product 4, 5-bis (2-methoxyethoxy) -2-nitroaniline (381.7 mg, 89%) as a yellow solid.

Step 4: preparation of 4, 5-bis (2-methoxyethoxy) benzene-1, 2-diamine

To a solution of 4, 5-bis (2-methoxyethoxy) -2-nitroaniline (380.2 mg) in MeOH (6 mL) was added Zn powder (418.7 mg), NH ₄ Cl(406.2mg)、H ₂ O (2 mL) and DCM (4 mL) were reacted at room temperature for 6h. The reaction was monitored by TLC and LCMS. The mixture was then concentrated in vacuo and the residue was purified by combi flash (DCM: meOH gradient 100%:0 to 93%: 7%) to give crude product 45-bis (2-methoxyethoxy) benzene-1, 2-diamine (257.6 mg, 76%) as a yellow solid.

Step 5: synthesis of (R) -3- (5, 6-bis (2-methoxyethoxy) -1H-benzo [ d ] imidazo-2-yl) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine (compound 101)

POCl to 4, 5-bis (2-methoxyethoxy) benzene-1, 2-diamine (85.9 mg) ₃ (3 mL) solution was added (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a)]Pyrimidine-3-carboxylic acid (112.6 mg), the mixture was stirred at 100deg.C for 6h. The reaction was monitored by TLC and LCMS. The mixture was then concentrated in vacuo and the residue was adjusted to ph=8, and the residue was purified by combi flash (DCM: meOH gradient 100%:0 to 93%: 7%) to give 22.6mg (12% yield) of the title compound. MS (ES) ⁺ ):m/z＝565.6(M+H) ⁺ 。

¹ H NMR(500MHz,CD3OD)δ8.56-8.24(m,2H),7.15(s,1H),7.12-6.87(m,4H),6.63and6.12(1H,s+s),5.62and 5.27(1H,s+s),4.27-3.71(m,6H),4.87-3.81(m,4H),3.30(s,6H),2.56(s,1H),2.30-1.94(m,3H)。

The following examples (shown in table 3) were prepared substantially as described in example 101 using the corresponding starting materials. For example, substantially as described in example 101, usingReplace->Preparation example 62 (see table 3). Other starting materials are commercially available and may also be prepared by methods known in the reported literature or as shown.

TABLE 3 Table 3

* And (3) injection: if isomers, such as tautomers, are present in the above compounds, the invention also includes isomers, such as tautomers, of the compounds, as well as mixtures thereof.

EXAMPLE 125 Synthesis of Compound 125 and/or isomers thereof

(R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazole-6-carbonitrile

(R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile

Step 1: preparation of 4-amino-2-methoxy-5-nitrobenzonitrile

At 15℃to CH ₃ To a solution of ONa (14.6 g) in MeOH (300 mL) was added 4-amino-2-fluoro-5-nitrobenzonitrile (9.8 g). The solution was then warmed to room temperature and stirred for 8h. LCMS showed the reaction was complete, concentrated under reduced pressure to remove MeOH, 1L of water was added to the residue, and the pH was adjusted to 4-5 with 2N aqueous HCl. Filtration gave a solid which was washed with water. Drying under reduced pressure at 50℃for 10 hours gave the product 4-amino-2-methoxy-5-nitrobenzonitrile (9.6 g) as a yellow solid.

Step 2: preparation of 4, 5-diamino-2-methoxybenzonitrile

To a solution of 4-amino-2-methoxy-5-nitrobenzonitrile (9.6 g) in DCM/MeOH (1:1, 60 mL) was added saturated NH ₄ Cl (aq) (60 mL) solution. Zn powder was added to the mixture (32.5 g), and the mixture was stirred at room temperature for 2h. LCMS showed the reaction was complete. The reaction mixture was filtered and the filtrate was extracted with DCM (3×100 ml), the organic layers were combined, washed with brine, concentrated under reduced pressure and the residue purified by combi flash (PE: ea=50%: 50%) to give the product 4, 5-diamino-2-methoxybenzonitrile (7.3 g) as a red solid.

Step 3: synthesis of (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazole-6-carbonitrile and/or isomers thereof

To (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]POCl of pyrimidine-3-carboxylic acid (3.44 g) ₃ To the solution (30 mL) was added 4, 5-diamino-2-methoxybenzonitrile (1.96 g). The mixture was heated to 90 ℃ and stirred for 3h. LCMS showed the reaction was complete. Cooled to room temperature and concentrated under reduced pressure to remove POCl ₃ The residue was poured into water (300 mL) to precipitate a solid, filtered, the filter cake was added to a 1N aqueous NaOH solution (100 mL) and stirred overnight, filtered, the filter cake was washed with water, and dried under vacuum at 60℃for 10h to give the final product (compound 125 and/or an isomer of compound 125) as a yellow solid (3.98 g). MS [ M+H ] ] ⁺ :472.16。

¹ H NMR(500MHz,DMSO-d6)δ10.53-11.44(m,1H),8.63and 8.78(br+br,1H),8.37and8.46(s+s,1H),7.56and 7.87and 7.90(s+s+s,1H),6.97and 7.21-7.36(m+m,4H),6.09and6.63(br+br,1H),5.37and 5.66(br+br,1H),3.72and 4.25(br+br,1H),3.94-4.00(m,4H),2.57(br,1H),1.98-2.15(m,3H).

EXAMPLE 156 Synthesis of Compound 156 and/or its isomers

(R) -6- (difluoromethoxy) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-5-carbonitrile

(R) -5- (difluoromethoxy) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-6-carbonitrile

Step 1: synthesis of 4-amino-2-hydroxy-5-nitrobenzonitrile

To a solution of NaOH (8.8 g) in water (100 mL) at-15℃was added 4-amino-2-fluoro-5-nitrobenzonitrile (10 g), and the mixture was stirred at 80℃for 8h. The reaction was monitored by LC-MS. After complete consumption of 4-amino-2-fluoro-5-nitrobenzonitrile, the reaction mixture was adjusted to pH 6-7 with 6N HCl at 20 ℃. The mixture was filtered and the filter cake was washed with water and dried under reduced pressure at 50 ℃ for 10 hours to give 4-amino-2-hydroxy-5-nitrobenzonitrile (9.0 g) as a yellow solid. Step 2: synthesis of tert-butyl (4-cyano-5-hydroxy-2-nitrobenzene) carbamate

To a solution of 4-amino-2-hydroxy-5-nitrobenzonitrile (500 mg) in THF (15 mL) was added Boc ₂ O (670 mg) and DMAP (34 mg). The mixture was stirred at room temperature for 4 hours and TLC showed completion of the 4-amino-2-hydroxy-5-nitrobenzonitrile reaction. The mixture was evaporated under vacuum and the residue was diluted with EA. The organic phase was washed with 0.5N HCl, water, brine, and dried over Na ₂ SO ₄ And (5) drying. The solvent was evaporated in vacuo and the residue was purified by silica gel column chromatography (EA/PE: 0 to 20% in 30 min) to give the final product (646 m)g) As a yellow solid.

Step 3: synthesis of tert-butyl (4-cyano-5- (difluoromethoxy) -2-nitrobenzene) carbamate

To the mixture was tert-butyl (4-cyano-5-hydroxy-2-nitrobenzene) carbamate (100 mg), clCF ₂ COONa (109 mg) and Cs ₂ CO ₃ DMF (3 mL) and water (0.3 mL) were added to (140 mg). The mixture was heated at 90℃for 2h. When TLC showed complete consumption of tert-butyl (4-cyano-5- (difluoromethoxy) -2-nitrobenzene) carbamate, the reaction mixture was diluted with EA. The organic phase was washed with water, brine, and dried over Na ₂ SO ₄ And (5) drying. The solvent was evaporated in vacuo and the residue was purified by silica gel column chromatography (EA/PE: 0 to 20% in 30 min) to give the final product (77 mg) as a yellow solid.

Step 4 tert-butyl (2-amino-4-cyano-5- (difluoromethoxy) phenyl) carbamate

To the mixture was tert-butyl (4-cyano-5- (difluoromethoxy) -2-nitrobenzene) carbamate (77 mg), zinc powder (91 mg) and NH ₄ To Cl (126 mg) were added EtOH (3 mL) and water (1 mL). The mixture was stirred at 80℃for 12h. When TLC and LC-MS showed that tert-butyl (4-cyano-5- (difluoromethoxy) -2-nitrobenzene) carbamate consumption was complete, the reaction mixture was filtered. The filtrate was concentrated in vacuo and the residue was diluted with water. The aqueous phase was extracted with DCM and the combined organic phases were washed with brine, with Na ₂ SO ₄ Drying and concentration in vacuo afforded the crude product, which was purified by silica gel column chromatography (MeOH/DCM: 0-5% in 30 min) to afford the final product (56 mg) as a yellow solid.

Step 5 Synthesis of 4, 5-diamino-2- (difluoromethoxy) benzonitrile

To tert-butyl (2-amino-4-cyano-5- (difluoromethoxy) phenyl) carbamate (56 mg) was added a solution of 4M HCl in dioxane (4 mL). The mixture was stirred at room temperature for 4h. LC-MS detection after completion of the 4, 5-diamino-2- (difluoromethoxy) benzonitrile reaction, the reaction mixture was concentrated in vacuo and the residue was taken up in NaHCO ₃ Diluting the aqueous solution. The aqueous phase was extracted with DCM and the combined organic phases were washed with brine, over Na ₂ SO ₄ Dried and concentrated in vacuo to give the final product (37 mg), which was used directly in the next step.

Step 6: synthesis of (R) -6- (difluoromethoxy) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-benzo [ d ] imidazole-5-carbonitrile and isomers thereof

To (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]CH of pyrimidine-3-carboxylic acid (64 mg) ₃ Adding POCl into CN (2 mL) solution ₃ (54. Mu.L, 0.561 mmol) and 4, 5-diamino-2- (difluoromethoxy) benzonitrile (37 mg). The mixture was stirred at 90℃for 3h. When LC-MS showed complete consumption of 4, 5-diamino-2- (difluoromethoxy) benzonitrile, the reaction mixture was concentrated in vacuo and the residue diluted with EA. The organic phase was washed with water, brine, na ₂ SO ₄ And (5) drying. The solvent was evaporated in vacuo and the residue was purified by silica gel column chromatography (MeOH/DCM: 0-8% in 30 min) to give the final product (compound 156 and/or an isomer of compound 156) as a yellow solid (18 mg). MS [ M+H ]]+508.18。

Example 163 Synthesis of Compound 163 and/or isomers thereof

(R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (4-methylpiperazin-1-yl) -1H-benzo [ d ] imidazole-5-carbonitrile

(R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5- (4-methylpiperazin-1-yl) -1H-benzo [ d ] imidazole-6-carbonitrile

Step 1: synthesis of 4-amino-2- (4-methylpiperazin-1-yl) -5-nitrobenzonitrile

To a solution of 4-amino-2-fluoro-5-nitrobenzonitrile (18.1 g) in THF (300 mL) at below 15℃were added 1-methylpiperazine (12.1 g) and DIEA (25.8 g). The solution was then warmed to room temperature and stirred for 3h. LCMS showed the reaction was complete. The reaction mixture was poured into ice water and extracted with EA (3 x 100 ml), the organic layers were combined and washed with brine and dried over sodium sulfate. Concentration gave the final product 4-amino-2- (4-methylpiperazin-1-yl) -5-nitrobenzonitrile (21.5 g) as a brown solid.

Step 2: synthesis of 4, 5-diamino-2- (4-methylpiperazin-1-yl) benzonitrile

To a solution of 4-amino-2- (4-methylpiperazin-1-yl) -5-nitrobenzonitrile (13.1 g) in DCM/MeOH (1:1, 60 mL) was added NH ₄ Cl/H ₂ O (60 mL). The mixture was stirred, zn (32.8 g) was added, and then the solution was stirred at room temperature for 2h. LCMS showed the reaction was complete. The reaction mixture was filtered, the filtrate extracted with DCM (3×100 ml), the organic layers were combined, washed with brine, concentrated under reduced pressure and the residue purified by combiflash (PE: ea=50%: 50%) to give the final product 4, 5-diamino-2- (4-methylpiperazin-1-yl) benzonitrile (8.7 g) as a brown solid.

Step 3: (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- (4-methylpiperazin-1-yl) -1H-benzo [ d ] imidazole-5-carbonitrile and isomers thereof

To (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]POCl of pyrimidine-3-carboxylic acid (3.44 g) ₃ To the solution (30 mL) was added 4, 5-diamino-2- (4-methylpiperazin-1-yl) benzonitrile (2.77 g). The mixture was heated to 90 ℃ and stirred for 3h. LCMS showed the reaction was complete. Cooled to room temperature and concentrated under reduced pressure to remove POCl ₃ The residue was poured into water (300 mL) and filtered, and the solid was taken up in NaHCO ₃ The saturated solution was washed with water and dried under reduced pressure at 60℃for 10 hours to give the final product (compound 163 and/or isomer of compound 163) (3.58 g) as a yellow solid. MS [ M+H ] ]+540.81。

The following examples (as shown in table 4) were prepared essentially as described in example 163 using the corresponding starting materials. For example, substantially as described in example 163, usingReplace->The following example 164 (shown in table 4) was prepared and other starting materials were either commercially available or prepared by known methods in the reported literature or as shown.

TABLE 4 Table 4

* And (3) injection: if isomers are present in the above compounds, the invention also includes isomers thereof, as well as mixtures thereof.

EXAMPLE 170 Synthesis of Compound 170 and/or its isomers

(R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6- (methylsulfonyl) -1H-phenyl [ d ] imidazol-2-yl) pyrazolo [1,5-a ] pyrimidine

(R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5- (methylsulfonyl) -1H-benzo [ d ] imidazol-2-yl) pyrazolo [1,5-a ] pyrimidine

To (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]POCl of pyrimidine-3-carboxylic acid (344 mg) ₃ To the solution (5 mL) was added 4- (methylsulfonyl) benzene-1, 2-diamine (223 mg). The mixture was heated to 90 ℃ and stirred for 3h. LCMS showed the reaction was complete. Cooled to room temperature and concentrated under reduced pressure to remove POCl ₃ The residue was poured into water (300 mL) and filtered, and the solid was taken up in saturated NaHCO ₃ The solution and water were washed and dried under reduced pressure at 60℃for 10h to give the final product (compound 170 and/or an isomer of compound 170) as a yellow solid (397 mg). LC-MS: [ M+H ]] ⁺ 495.66。

The following examples (as shown in table 5) were prepared essentially as described in example 170 using the corresponding starting materials. For example, substantially as described in example 170, usingReplace->The following example 171 (shown in table 5) was prepared and other starting materials were either commercially available or prepared by known methods in the reported literature or as shown.

TABLE 5

EXAMPLE 63 Synthesis of Compound 63

2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- ((R) -hexahydropyrrolo [1,2-a ] pyrazin-2 (1H) -yl) benzo [ d ] thiazole

Step 1: synthesis of (R) -5- (hexahydro-pyrrolo [1,2-a ] pyrazin-2 (1H) -yl) -2-nitrophenylsulfol

To a solution of 5-fluoro-2-nitrophenylthiophenol (1.73 g) in THF (300 mL) at 15℃or below was added (R) -octahydropyrrolo [1,2-a ]]Pyrazine (1.51 g) and DIEA (2.58 g). The solution was then warmed to room temperature and stirred for 3h. LCMS showed the reaction was complete. The reaction mixture was poured into ice water and extracted with EA (3 x 100 ml), the organic layers combined and washed with brine, na ₂ SO ₄ And (5) drying. Concentrating to obtain the final product (R) -5- (hexahydro-pyrrole [1, 2-a)]Pyrazin-2 (1H) -yl) -2-nitrophenylsulfol (2.13 g) as a brown solid.

Step 2: synthesis of (R) -2-amino-5- (hexahydropyrrolo [1,2-a ] pyrazin-2 (1H) -yl) thiophenol

To (R) -5- (hexahydropyrrole [1, 2-a)]To a solution of pyrazin-2 (1H) -yl) -2-nitrophenylthiophenol (2.13 g) in DCM/MeOH (1:1, 30 mL) was added NH ₄ Cl/H ₂ O (30 mL). The mixture was stirred and zinc (4.9 g) was added, howeverThe solution was then stirred at room temperature for 2h. LCMS showed the reaction was complete. The reaction mixture was filtered, the filtrate extracted with DCM (3×100 ml), the organic layers were combined, washed with brine, concentrated under reduced pressure and the residue purified by combiflash (PE: ea=50%: 50%) to give (R) -2-amino-5- (hexahydropyrrole [1,2-a ]]Pyrazin-2 (1H) -yl) thiophenol (1.37 g) as a brown solid.

Step 3: synthesis of 2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6- ((R) -hexahydropyrrolo [1,2-a ] pyrazin-2 (1H) -yl) benzo [ d ] thiazole

To (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]Pyrimidine-3-carboxylic acid (3.44 g) was added SOCl ₂ (2.38 g) was heated to 80℃for 2h until after an aliquot was quenched with a few drops of MeOH, the acid was found to be completely consumed and a new spot was found in TLC. Evaporating the excess SOCl ₂ The residue was dissolved in toluene (30 mL) and (R) -2-amino-5- (hexahydropyrrole [1, 2-a) was added at 0deg.C]Pyrazin-2 (1H) -yl) thiophenol (2.49 g) and then stirred at room temperature for 1 hour.

LCMS showed the reaction was complete. The mixture was extracted with EtOAc (10 mL) and saturated NaHCO ₃ The aqueous solution (5 mL) was diluted. The organic layer was separated and the aqueous layer was extracted with EA (3 x 5 ml). The combined EtOAc extracts were treated with H ₂ O (3X 5 mL) washing, na ₂ SO ₄ Dried and concentrated under reduced pressure, and the residue was purified by combiflash (DCM: meoh=95%: 5%) to give the final product 2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]Pyrimidin-3-yl) -6- ((R) -hexahydropyrrole [1,2-a]Pyrazin-2 (1H) -yl) benzo [ d ]]Thiazole (2.43 g) as yellow solid. MS [ M+H ]] ⁺ 558.81。

The corresponding starting materials were used, essentially as described in example 63Replace->The following example 75 (shown in table 6) was prepared and other starting materials were either commercially available or prepared by known methods in the reported literature or as shown.

TABLE 6

EXAMPLE 132 Synthesis of Compound 132

2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5,6,7, 8-tetrahydro- [1,2,4] triazol [1,5-a ] pyridin-6-ol

Step 1: preparation of (5-oxo-tetrahydrofuran-3-yl) methyl methanesulfonic acid

To a solution of 4- (hydroxymethyl) dihydrofuran-2 (3H) -one (236.5 mg) in DCM (5 mL) was added Et ₃ N (658.7 mg) and MsCl (392.6 mg) were reacted at 0℃for 1h. The reaction was monitored by TLC and LCMS. Adding saturated NH to the mixture ₄ Cl solution (3 mL) and DCM. The mixture was extracted with DCM (3×15 ml) and the organic layer was extracted with Na ₂ SO ₄ The mixture was dried, then concentrated in vacuo and the residue was purified by combi flash (DCM: meOH gradient 100%:0 to 95%: 5%) to give the product (5-oxotetrahydrofuran-3-yl) methanesulfonic acid (228.7 mg, 58%) as a yellow solid.

Step 2: preparation of 1-amino-5-hydroxypiperidin-2-one

To (5-oxo-tetrahydrofuran-3-yl)) N was added to a solution of methanesulfonic acid (226.7 mg) in EtOH (5 mL) ₂ H ₄ .H ₂ O (52.8 mg) was reacted at 80℃for 6h. The reaction was monitored by TLC and LCMS. The mixture was concentrated in vacuo and the residue was purified by combi flash (DCM: meOH gradient 100%:0 to 95%: 5%) to give the product 1-amino-5-hydroxypiperidin-2-one (56.3 mg, 90%) as a yellow solid.

Step 3: synthesis of 2- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5,6,7, 8-tetrahydro- [1,2,4] triazol [1,5-a ] pyridin-6-ol

To a pyridine solution of 1-amino-5-hydroxypiperidin-2-one (56.3 mg) was added (R) -methyl 5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a at 110℃over 12h ]Pyrimidine-3-carboiminomethylthio ester (148.7 mg). The reaction was monitored by TLC and LCMS. The mixture was concentrated in vacuo and the residue was adjusted to ph=8, and the residue was purified by combi flash (DCM: meOH gradient 100%:0 to 95%: 5%) to give 22.6mg (20% yield) of the title compound. MS (ES) ⁺ ):m/z＝438.5(M+H) ⁺

¹ H NMR(500MHz,CD ₃ OD)δ8.52-8.20(m,2H),7.16(s,1H),7.11-6.86(m,2H),6.62and6.08(1H,s+s),5.65and 5.30(1H,s+s),4.25-3.69(m,4H),3.16(s,1H),2.67-2.62(m,2H),2.28-1.92(m,4H),1.63-1.59(m,2H)。

The corresponding starting materials were used, essentially as described in example 132Replace->The following example 187 (shown in table 7) was prepared and other starting materials were either commercially available or prepared by known methods in the reported literature or as shown.

TABLE 7

EXAMPLE 133 Synthesis of Compound 133

(R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-indole-5-carbonitrile

To a solution of (R) -2- (2, 5-difluorophenyl) pyrrolidine hydrochloride (2.2 g) in n-BuOH (30 mL) was added DIEA (4.82 g) and 3-bromo-5-chloropyrazolo [1,5-a ]]Pyrimidine (2.61 g) was reacted at 100℃for 3 hours. The reaction was monitored by TLC and LCMS. The mixture was then concentrated in vacuo and the mixture extracted with ethyl acetate (3X 100 mL) and the organic layer was taken up over Na ₂ SO ₄ The mixture is dried and then concentrated in vacuo and the residue gives the product ((R) -3-bromo-5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a)]Pyrimidine (3.5 g, 92%) as a yellow solid.

Step 2: preparation of (R) -tert-butyl 5-cyano-2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-indole-1-carboxylic acid ester

To ((R) -3-bromo-5- (2, 5-di)Fluorophenyl) pyrrolidin-1-yl pyrazolo [1,5-a]Cs is added to a solution of pyrimidine (162.8 mg) in dioxane (5 mL) ₂ CO ₃ (418.3mg)、H ₂ O(1mL)、Pd(dppf)Cl ₂ (62.5 mg) and (1- (tert-butoxycarbonyl) -5-cyano-1H-indol-2-yl) boronic acid (192.7 mg) at 80℃N ₂ The reaction was carried out for 6 hours under ambient conditions. The reaction was monitored by TLC and LCMS. The mixture was then concentrated in vacuo and the mixture extracted with ethyl acetate (3×50 mL), the organic layer was extracted with Na ₂ SO ₄ Drying and then concentrating the mixture in vacuo and purifying the residue by combi flash (PE: EA gradient 100%:0 to 50%: 50%) to give the crude ((R) -tert-butyl 5-cyano-2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a)]Pyrimidin-3-yl) -1H-indole-1-carboxylic acid ester (106.3 mg, 46%) as a yellow solid.

Step 3 preparation of (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -1H-indole-5-carbonitrile (compound 133)

To ((R) -tert-butyl 5-cyano-2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a)]To a solution of pyrimidin-3-yl) -1H-indole-1-carboxylic acid ester (102.8 mg) in DCM (2 mL) was added TFA (2 mL) and the reaction was allowed to proceed at room temperature for 12H. The reaction was detected by TLC and LCMS. The mixture was then concentrated in vacuo and the residue was adjusted to ph=8, and the residue was purified by combi flash (DCM: meOH gradient 100%:0 to 93%: 7%) to give 36.9mg (45% yield) of the title compound. MS (ES) ⁺ ):m/z＝441.5(M+H) ⁺ 。

¹ H NMR(500MHz,CD ₃ OD)δ8.60-8.78(m,2H),7.52-7.77(m,3H),7.18(s,1H),7.10-6.85(m,3H),6.61and 6.07(1H,s+s),5.66and 5.31(1H,s+s),4.22-3.66(m,2H),2.53(s,1H),2.29-1.93(m,3H)。

The following examples (as shown in table 8) were prepared essentially as described in example 133 using the corresponding starting materials. For example, substantially as described in example 133, usingReplace->The following example 183 (shown in table 8) was prepared and other starting materials were either commercially available or prepared by known methods in the reported literature or as shown.

TABLE 8

Example 188 Synthesis of Compound 188

(R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -3,4,6, 7-tetrahydropyran [3,4-d ] imidazole

Step 1: synthesis of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carbonitrile

To a solution of ethyl 5-chloropyrazolo [1,5-a ] pyrimidine-3-carbonitrile (17.8 g) in EtOH (400 mL) were added (R) -2- (2, 5-difluorophenyl) pyrrolidine hydrochloride (26.2 g) and DIEA (25.8 g). The mixture was heated to 90℃and reacted for 2h. TLC showed the reaction was complete, concentrated under reduced pressure to remove EtOH, and the residue was poured into cooled water and filtered, and the solid was washed with 1N HCl and water and dried under reduced pressure at 60 ℃ for 10h to give the final product (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carbonitrile (29.9 g, 92%) as a white solid.

Step 2: synthesis of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -N-hydroxypyrazolo [1,5-a ] pyrimidine-3-carboxamide

The mixture (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]Pyrimidine-3-carbonitrile (16.2 g), NH ₂ A solution of OH HCl (4.17 g) and DIEA (19.3 g) in THF (200 mL) was stirred at 70℃overnight. After cooling to room temperature, the mixture was concentrated under reduced pressure. The residue was dissolved in water and the pH was adjusted to 2-3 with HCl (1M in water). After washing the mixture with 3X 40mL EA, the pH of the aqueous layer was adjusted to 8-9 with NaOH (2M aqueous solution) and then extracted with 3X 30mL EA. The combined organic layers were purified by Na ₂ SO ₄ Drying and concentrating under reduced pressure to obtain the product (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -N-hydroxypyrazolo [1, 5-a)]Pyrimidine-3-carboxylic imide (5.1 g) as a white solid.

Step 3: synthesis of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxamide

A round bottom flask charged with a methanol solution (150 mL) of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -N-hydroxypyrazolo [1,5-a ] pyrimidine-3-carboxamide (5.0 g) was purged with nitrogen. Pd/C (1 g,10%,60% water) was added to the solution, and the flask was further purged. The atmosphere was then changed to hydrogen and the mixture was stirred in a balloon at 25 ℃ overnight. After purging the system with nitrogen, the solids were removed by filtration and the filtrate was concentrated under reduced pressure to give the final product (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylic imide (2.9 g) as a brown solid.

Step 4: synthesis of (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -3,4,6, 7-tetrahydropyran [3,4-d ] imidazole

Mixture (R) -5- (2, 5-difluoro)Phenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]CH of pyrimidine-3-carboxamide (685 mg), 3-bromodihydro-2H-pyran-4 (3H) -one (358 mg) and potassium carbonate (552 mg) ₃ The CN (15 mL) solution was stirred overnight at 80deg.C under nitrogen. After cooling to room temperature, the reaction mixture was concentrated under reduced pressure. The residue was dissolved in EA (50 mL) and treated with 2X 10mLH ₂ And (3) washing. The organic phase was taken up in Na ₂ SO ₄ Dried, and concentrated under reduced pressure. The residue was purified by column on silica gel eluting with EA/PE (1/3) to give the final product (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a)]Pyrimidin-3-yl) -3,4,6, 7-tetrahydropyran [3,4-d]Imidazole (295 mg) as a white solid. LC-MS: [ M+H ]] ⁺ 423.72。

EXAMPLE 189 Synthesis of Compound 189

(R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4,5,6, 7-tetrahydrothiazolo [4,5-c ] pyridine

Step 1: synthesis of tert-butyl 3- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxamide) -4-hydroxypiperidine-1-carboxylate

By SOCl ₂ (2.38 g) treatment of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ]Pyrimidine-3-carboxylic acid (3.44 g) was reacted for 2h at 80℃until after an aliquot was quenched with a few drops of MeOH, the acid was found to be completely consumed and a new spot appeared in TLC. Evaporating the excess SOCl ₂ The residue was dissolved in DCM (30 mL) and tert-butyl 3-amino-4-hydroxypiperidine-1-carboxylate (2.16 g), et, was added at 0deg.C ₃ N (2.02 g), stirred for 1 hour.

To the mixture was added 100mL of ethyl acetoacetate, followed by washing with water. The organic layer was dried over anhydrous magnesium sulfate. Filtered off and distilled off under reduced pressure, and the residue was purified with combiflash to give the final product tert-butyl 3- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxamide) -4-hydroxypiperidine-1-carboxylate (2.77 g, 51%) as a yellow solid.

Step 2: synthesis of tert-butyl 3- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxamide) -4-oxopiperidine-1-carboxylate

Tert-butyl 4-hydroxy-3- { [4- (trifluoromethyl) benzoyl ] amino } piperidine-1-carboxylate (2.17 g) was dissolved in DCM (30 mL) and 2.5 g Dess-Martin periodate was added dropwise thereto. After stirring for 5 hours, ethyl acetoacetate (50 mL) was added dropwise and the mixture was washed with water. The organic layer was dried over anhydrous magnesium sulfate. The reaction solution was filtered, distilled under reduced pressure, and then the residue was distilled off. Purification by combiflash (DCM: meoh=95%: 5%) afforded the final product tert-butyl 3- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxamide) -4-oxopiperidine-1-carboxylate (1.6 g, 76%) as a yellow solid.

Step 3: synthesis of tert-butyl (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6, 7-dihydrothiazol [4,5-c ] pyridine-5 (4H) -carboxylate

To a toluene solution of tert-butyl 3- (5- ((R) -2- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxamide) -4-oxopiperidine-1-carboxylate (540 mg) was added Lawesson's reagent (485 mg) and the resulting solution was stirred at reflux for 4 hours. LCMS indicated completion of the reaction and reduced pressure distillation removed toluene. Purification of the residue with combiflash (DCM: meoh=95%: 5%) afforded the product tert-butyl (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6, 7-dihydrothiazol [4,5-c ] pyridine-5 (4H) -carboxylate (242 mg) as a brown solid.

Step 4: synthesis of (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -4,5,6, 7-tetrahydrothiazole [4,5-c ] pyridine hydrochloride

To tert-butyl (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]Pyrimidin-3-yl) -6, 7-dihydrothiazoles [4,5-c]To a solution of pyridine-5 (4H) -carboxylate (240 mg) in DCM (10 mL) was added 4N HCl/dioxane (4 mL). The mixture was stirred for 3h. LCMS showed the reaction was complete. Concentrating under reduced pressure to remove DCM and dioxane to obtain (R) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a) ]Pyrimidin-3-yl) -4,5,6, 7-tetrahydrothiazoles [4,5-c]Pyridine hydrochloride (148 mg) as a brown solid. MS [ M+H ]] ⁺ 439.78。

The following examples (shown in table 9) were prepared essentially following the procedure of example 189 using the corresponding starting materials.

TABLE 9

EXAMPLE 193 Synthesis of Compound 193

(R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5, 6-dimethoxy-1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidin-2-amine

Step 1: synthesis of ethyl (R) -2-amino-5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylate

To a solution of (R) -2- (2, 5-difluorophenyl) pyrrolidine hydrochloride (1.00 g) in EtOH (150 mL) at room temperature was added DIEA (1.93 g) and ethyl 2-amino-5-chloropyrazolo [1,5-a ] pyrimidine-3-carboxylate (1.13 g), followed by heating to 80℃for 3h. The reaction was monitored by TLC and LCMS. The reaction was cooled to room temperature and the mixture was concentrated in vacuo. The reaction mixture was added to cooling water and stirred. The mixture was filtered and the residual solid was stirred in 1N HCl solution, then the mixture was filtered to give the crude product and dried at 50 ℃ for 16h to give ethyl (R) -2-amino-5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylate (1.51 g) as a pale yellow solid.

Step 2: synthesis of (R) -2-amino-5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylic acid

To ethyl (R) -2-amino-5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]EtOH (150 mL) and H of pyrimidine-3-carboxylate (1.50 g) ₂ To a solution of O (150 mL) was added NaOH (467.9 mg), and the temperature was raised to react at 80℃for 6h. The reaction was monitored by TLC and LCMS. The mixture was concentrated in vacuo and the residue was poured into 1N HCl solution. The mixture was filtered and dried at 50℃for 16h to give the crude (R) -2-amino-5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a)]Pyrimidine-3-carboxylic acid (1.30 g, 93%) was an off-white solid.

Step 3: synthesis of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5, 6-dimethoxy-1H-benzo [ d ] imidazo-2-yl) pyrazolo [1,5-a ] pyrimidin-2-amine

To (R) -2-amino-5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]To a solution of pyrimidine-3-carboxylic acid (1.30 g) in MeCN (150 mL) was added 4, 5-dimethoxybenzene-1, 2-diamine (669 mg) and POCl ₃ (1.66 g), and the reaction was carried out at 100℃for 16 hours. The reaction was monitored by TLC and LCMS. MeCN (150 mL) was added to the mixture) Then filtering, adjusting the pH value of the filter cake to 8 by using 0.5N NaOH solution, then filtering the mixture to obtain a crude product, and drying the filter cake at 50 ℃ for 16 hours to obtain the product (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (5, 6-dimethoxy-1H-benzo [ d) ]Imidazo-2-yl) pyrazolo [1,5-a]Pyrimidin-2-amine (1.2 g) as an off-white solid. MS [ M+H ]] ⁺ 492.81.

The corresponding starting materials were used, essentially as described in example 193Replace->The following example 194 (shown in table 10) was prepared and other starting materials were either commercially available or prepared by known methods in the reported literature or as shown.

Table 10

EXAMPLE 195 Synthesis of Compound 195 and/or isomers thereof

(R) -2- (5- (2- (2-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile

(R) -2- (5- (2- (2-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazole-6-carbonitrile

Direction (R)) -5- (2- (2-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]To a solution of pyrimidine-3-carboxylic acid (13.0 g) in MeCN (150 mL) was added 4, 5-diamino-2-methoxybenzonitrile (7.15 g) and POCl ₃ (18.34 g) and the reaction mixture was warmed to 100℃and reacted for 16 hours. The reaction was monitored by TLC and LCMS. MeCN (150 mL) was added to the mixture, followed by filtration, the pH of the filter cake was adjusted to 8 with 0.5N NaOH solution, and then filtration gave the crude product, which was dried. The product (compound 195 and/or an isomer of compound 195) was obtained as an off-white solid (13.9 g). LC-MS: [ M+H ] ] ⁺ 454.78。

EXAMPLE 196 Synthesis of Compound 196 and/or its isomers

(R) -2- (5- (2- (3-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile

(R) -2- (5- (2- (3-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazole-6-carbonitrile

Step 1: (R) -2- (5- (2- (3-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile and/or isomers thereof

To (R) -5- (2- (3-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]To a solution of pyrimidine-3-carboxylic acid (13.0 g) in MeCN (150 mL) was added 4, 5-diamino-2-methoxybenzonitrile (7.15 g) and POCl ₃ (18.34 g) and the reaction mixture was warmed to 100℃and reacted for 16 hours. The reaction was monitored by TLC and LCMS. MeCN (150 mL) was added to the mixture and then filtered, and the filter cake was dried to give the final product (compound 196 and/or isomer of compound 196) as off-whiteColor solids (13.6 g). MS [ M+H ]] ⁺ 454.78。

Example 197 Synthesis of Compound 197

(S) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile

(S) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ]

Imidazole-6-carbonitriles

Step 1: synthesis of ethyl (S) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylate

To a solution of (S) -2- (2, 4-difluorophenyl) pyrrolidine hydrochloride (10.00 g) in EtOH (150 mL) at room temperature was added DIEA (17.62 g) and ethyl 5-chloropyrazolo [1,5-a ] pyrimidine-3-carboxylate (9.76 g), followed by heating to 80℃for 3h. The reaction was detected by LCMS. The reaction was cooled to room temperature and the mixture was concentrated in vacuo. The reaction mixture was added to cooling water and stirred. The mixture was filtered and the residual solid was stirred in 1N HCl solution, then the mixture was filtered to give the crude product and dried at 50 ℃ for 16h to give ethyl (S) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylate (15.20 g) as a pale yellow solid.

Step 2: synthesis of (S) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylic acid

To ethyl (S) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]EtOH (150 mL) and H of pyrimidine-3-carboxylate (15.2 g) ₂ NaOH (4.90 g) was added to the O (150 mL) solution, and the mixture was heated to 80℃and reacted for 6 hours. The reaction was monitored by TLC and LCMS. The mixture was concentrated in vacuo and the residue was poured into 1N HCl solution. The mixture is filtered and dried to give the product (S) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a) ]Pyrimidine-3-carboxylic acid (13.0 g) was an off-white solid.

Step 3: (S) -2- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile and/or isomers thereof

To (S) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]To a solution of pyrimidine-3-carboxylic acid (13.0 g) in MeCN (150 mL) was added 4, 5-diamino-2-methoxybenzonitrile (6.77 g) and POCl ₃ (17.37 g), and the reaction was carried out at 100℃for 16 hours. The reaction was monitored by TLC and LCMS. MeCN (150 mL) was added to the mixture, followed by filtration, ph=8 of the filter cake was adjusted with 0.5N NaOH solution, and then filtration gave a crude product, which was dried to give the final product (compound 197 and/or isomer of compound 197) as an off-white solid (13.5 g). MS [ M+H ]] ⁺ 472.81。

EXAMPLE 198 Compound 198 and/or isomers thereof

(R) -2- (5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile

(R) -2- (5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5-methoxy-1H-benzo [ d ] imidazole-6-carbonitrile

Step 1: synthesis of (R) -ethyl 5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylate

To a solution of (R) -2- (4-fluorophenyl) pyrrolidine hydrochloride (10.00 g) in EtOH (150 mL) was added DIEA (19.25 g) and ethyl 5-chloropyrazolo [1,5-a ] pyrimidine-3-carboxylate (10.62 g) at room temperature, followed by heating to 80℃for 3h. The reaction was detected by TLC and LCMS. The reaction was cooled to room temperature and the mixture was concentrated in vacuo. The reaction mixture was added to cooling water and stirred. The mixture was filtered and the residual solid was stirred in 1N HCl solution, then the mixture was filtered to give the crude product and dried at 50 ℃ for 16h to give (R) -ethyl 5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylate (15.20 g) as a pale yellow solid.

Step 2: synthesis of (R) -5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carboxylic acid

To (R) -ethyl 5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]EtOH (150 mL) and H of pyrimidine-3-carboxylate (15.2 g) ₂ NaOH (5.15 g) was added to the O (150 mL) solution, and the mixture was heated to 80℃and reacted for 6 hours. The reaction was monitored by TLC and LCMS. The mixture was concentrated in vacuo and the residue was poured into 1N HCl solution. The mixture was filtered and heated at 50℃for 16h to give the crude (R) -5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a) ]Pyrimidine-3-carboxylic acid (13.0 g) was an off-white solid.

The reaction was detected by TLC and LCMS. The mixture was concentrated in vacuo and the residue was poured into 1N HCl solution. The mixture was filtered and heated at 50 ℃ for 16h to give the crude (R) -5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] thiophene-3-carboxylic acid (13.0 g) as an off-white solid.

Step 3: synthesis of (R) -2- (5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -6-methoxy-1H-benzo [ d ] imidazole-5-carbonitrile and/or isomers thereof

To (R) -5- (2- (4-fluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]To a solution of pyrimidine-3-carboxylic acid (13.0 g) in MeCN (150 mL) was added 4, 5-diamino-2-methoxybenzonitrile (7.15 g) and POCl ₃ (18.34 g) and the reaction mixture was warmed to 100℃and reacted for 16 hours. The reaction was monitored by TLC and LCMS. MeCN (150 mL) was added to the mixture, followed by filtration, the pH of the filter cake was adjusted to 8 with 0.5N NaOH solution, and then filtration gave the crude product, which was reacted for 16h at 50 ℃ to give the final product (compound 198 and/or isomer of compound 198) as an off-white solid (13 g). MS [ M+H ]] ⁺ 454.81。

Example 199 Synthesis of Compound 199

(R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6, 7-dimethoxyimidazo [1,2-a ] pyridin-2-yl) pyrazolo

[1,5-a ] pyrimidines

Step 1: synthesis of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidine-3-carbohydrazide

To a solution of (R) -2- (4-fluorophenyl) pyrrolidine hydrochloride (1.00 g) in EtOH (15 mL) were added DIEA (1.93 g) and 1- (5-chloropyrazolo [1,5-a ] pyrimidin-3-yl) ethan-1-one (923.5 mg) at room temperature and heated to 80℃for 3h. The reaction was monitored by TLC and LCMS. The reaction was cooled to room temperature and the mixture was concentrated in vacuo. The reaction mixture was added to cooling water and stirred. The mixture was filtered and the residual solid was stirred in 1N HCl solution, then the mixture was filtered to give the crude product and dried at 50 ℃ for 16h to give (R) -1- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) ethanone (1.56 g) as a pale yellow solid.

Step 2: synthesis of (R) -2-chloro-1- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) ethanone

To a solution of (R) -1- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) ethanone (1.50 g) in MeCN (15 mL) was added NCS (1.17 g) and p-TsOH (151.5 mg) and reacted at 90℃for 6h. The reaction was monitored by TLC and LCMS. The mixture was concentrated in vacuo and the residue was purified by combiflash (PE: ea=50%: 50%) to give (R) -2-chloro-1- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) ethanone (906 mg) as a pale yellow solid.

Step 3: preparation of (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6, 7-dimethoxyimidazo [1,2-a ] pyridin-2-yl) pyrazolo [1,5-a ] pyrimidine

To (R) -2-chloro-1- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]To a solution of pyrimidin-3-yl) in n-BuOH (10 mL) was added 4, 5-dimethoxypyridin-2-amine (1.11 g), and the mixture was reacted at 130℃for 6h. The reaction was monitored by TLC and LCMS. The mixture was concentrated in vacuo and the residue was purified by combiflash (DCM: meoh=95%: 5%) to give (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) -3- (6, 7-dimethoxyimidazo [1, 2-a)]Pyridin-2-yl) pyrazolo [1,5-a]Pyrimidine (906 mg) as a pale yellow solid. MS [ M+H ]] ⁺ 477.53。

Example 200 preparation of Compound 200

(R) -3- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5, 6-dihydro-8H- [1,2,4] triazol [3,4-c ] [1,4] oxazine

To ethyl (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a at room temperature]To a solution of pyrimidine-3-carboxylate (1.00 g) in EtOH (10 mL) was added N ₂ H ₄ .H ₂ O (437 mg) and then heated to 80℃for 3h. The reaction was monitored by LCMS. The reaction was cooled to room temperature and the mixture was concentrated in vacuo and the residue was purified by combiflash (PE: ea=50%: 50%) to give (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ]Pyrimidine-3-carbohydrazide (1.01 g) as a pale yellow solid.

Step 2: synthesis of (R) -3- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a ] pyrimidin-3-yl) -5, 6-dihydro-8H- [1,2,4] triazolo [3,4-c ] [1,4] oxazine

To (R) -5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1,5-a]To a solution of pyrimidine-3-carbohydrazide (1.00 g) in THF (10 mL) was added Lawesson's reagent (3.39 g) and morphine-3-one (459.8 mg) at 70℃over 6h. The reaction was monitored by TLC and LCMS. The mixture was concentrated in vacuo and the residue was poured into 1N HCl solution. t-BuOH (10 mL) was added to the mixture at 130℃and reacted for 6h. The reaction was cooled to room temperature and the mixture was concentrated in vacuo and the residue was purified by combiflash (DCM: meoh=5%: 95%) to giveTo (R) -3- (5- (2, 5-difluorophenyl) pyrrolidin-1-yl) pyrazolo [1, 5-a)]Pyrimidin-3-yl) -5, 6-dihydro-8H- [1,2,4]Triazole [3,4-c ]][1,4]Oxazine (906 mg) as a pale yellow solid. MS [ M+H ]] ⁺ 424.48。

Comparative Compound A5- [2- (2, 5-difluorophenyl) pyrrolidin-1-yl ] -3- (5-methyl-1H-1, 2, 4-triazol-3-yl) pyrazolo [1,5-a ] pyrimidine

The following comparative compound a was prepared according to the procedure described in example 43 of WO 2016097869.

Example 201TrkA kinase assay

The inhibitory activity of the compounds on TrkA kinase was determined using mobility shift assays. The analysis steps are as follows:

1. reaction buffer

1x kinase base buffer (50mM HEPES,pH 7.5;0.0015%Brij-35)

Stop buffer (100mM HEPES,pH 7.5;0.015%Brij-35;0.2% coating reagent #3;50mM EDTA)

2. Preparation of the compound:

1) The compound was diluted with 100% dmso to 50 times the highest inhibitor concentration ultimately required in the reaction. Mu.l of this compound dilution was transferred to the wells of a 96-well plate. For example, if the highest inhibitor concentration required is 300nM, then a 15 μM solution of the compound in DMSO is prepared in this step.

2) For all compounds, compounds in the tube were transferred to one well on a 96-well storage plate and diluted in sequence by transferring 30 μl to 60 μl of 100% dmso in the next well, and so on, for a total of 10 concentrations.

3) In the same 96-well plate, 100 μl of 100% dmso was added to both the compound-free control and enzyme-free control wells. This plate is denoted as source plate.

4) Preparation of intermediate plate

Transfer of 10 μl of compound from source plate to new 96 well plate as intermediate plate

Mu.l of 1 Xkinase buffer was added to each well of the intermediate plate.

The compounds were mixed on the intermediate plate for 10 minutes on a shaker.

3. Preparation of assay plates

1) Mu.l per well was transferred from a 96-well intermediate plate to a 384-well plate in duplicate. For example, A1 of a 96-well plate is transferred into A1 and A2 of a 384-well plate. A2 for the 96-well plate was moved to A3 and A4 for the 384-well plate, and so on.

4. Kinase reaction

1) Preparation of 2.5 times enzyme solution

Kinase was added to 1x kinase base buffer.

2) Preparation of 2.5 times peptide solution

FAM-labeled peptide and ATP were added to 1x kinase base buffer.

3) The assay plate already contained 5 μl of a 10% dmso solution of the compound.

4) Transfer of 2.5-fold enzyme solution onto assay plate

Mu.l of 2.5 Xenzyme solution was added to each well of 384-well assay plates.

5) Incubate for 10 minutes at room temperature.

6) Transfer of 2.5 times peptide solution to assay plate

Mu.l of 2.5 Xpeptide solution was added to each well of a 384 well assay plate.

The kinase reaction conditions are shown in table 11:

TABLE 11

Name of the name	Enzyme (nM)	ATP(μM)	Peptides	Peptide concentration (μM)
					TRKA	5	415	P22	3

7) Kinase reaction and stop

Incubate at 28℃for the indicated time.

Add 25. Mu.l stop buffer to stop the reaction.

Caliper reading

The Caliper data was collected.

6. Curve fitting

1) The conversion data is copied from the Caliper program.

2) The converted value is converted into a suppression value.

Inhibition ratio = (max-conversion value)/(max-min value) ×100

"maximum" is DMSO control value; the "minimum" is kinase-free control Kong Zhi.

3) Obtaining an IC using data fitting in XLFit excel plug-in version 5.4.0.8 ₅₀ Values.

The equation is: y=minimum inhibition + (maximum inhibition-minimum inhibition)/(1+ (IC) ₅₀ X), slope.

IC for results ₅₀ The values are shown in table 11. As exemplified in the examples, the ICs of the compounds of the invention ₅₀ The values are in the following ranges: "x" stands for "IC ₅₀ Less than or equal to 10 nM'; ". Times." means "10nM<IC ₅₀ Less than or equal to 50 nM'; "represents" IC ₅₀ ＞50nM”。

Table 12

Example 202 Ba/F3-TPM3-NTRK1 and Ba/F3-ETV6-NTRK3 cell proliferation assay

1. Cell culture

Cell line: ba/F3 cells with stable expression of TPM3-NTRK or ETV6-NTRK3 fusion mutant genes were designated Ba/F3-TPM3-NTRK1 and Ba/F3-ETV6-NTRK3.

A. Culture medium

RPMI 1640 and 10% FBS and 1% PS and 2ug/mL puromycin.

B. Cell resuscitation

a) The medium was preheated in a 37℃water bath.

b) The frozen tube was removed from the liquid nitrogen tank, quickly placed in a 37 ℃ water bath, and completely melted within 1 minute.

c) The cell suspension was transferred to a 15mL centrifuge tube containing 8mL of medium and centrifuged at 1000rpm for 5 minutes.

d) The supernatant was discarded, the cells were resuspended in 1mL of medium and transferred to 75cm with 15mL of medium ² In a flask, at 37℃5% CO ₂ Cells are cultured in an incubator of (a).

C. Cell passage

a) The medium was preheated in a 37℃water bath.

b) Cells were collected in 15mL centrifuge tubes and centrifuged at 1000rpm for 5 minutes. Discarding the supernatant, counting to obtain a cell density of 1x10 ⁴ cells/mL, then placed at 37℃with 5% CO ₂ Is provided.

2. Preparation of the Compounds

a) Test compounds (20 mM stock solution) were diluted to 60. Mu.M as starting concentration in 100% DMSO, followed by 3-fold serial dilutions at "9+0" concentration. In 384 well dilution plates (Cat#P-05525, labzone);

b) Diluting the compound solution by 1:20 times with a culture medium to prepare a working solution by 10 times;

3. cell plating

a) Taking cells in the logarithmic growth phase, centrifuging at 1000rpm for 5 minutes, then re-suspending the cells with a medium, and then counting the cells;

b) Cells were seeded at a density of 800 cells/well onto 96-well cell culture plates;

4. treatment with a compound

a) The compound prepared in step 2 was added to the cell plate at a final concentration of 300, 100, 33.33, 11.11, 3.70, 1.23, 0.41, 0.14, 0.05 and 0nM, and DMSO at a final concentration of 0.5% in an amount of 15. Mu.L per well. The blank wells were medium (0.5% dmso);

c) The cells were further cultured in an incubator for 72 hours.

5. Detection of

a) The 96-well cell culture plates were removed and 50. Mu.l of CTG reagent (CellTiter Glo kit, promega, cat#G7573) was added.

b) The plates were shaken for 2 minutes and then cooled at room temperature for 30 minutes.

c) The luminescence signal values were read using a PerkinElmer reader.

Analysis of experimental data

Data were analyzed using GraphPad Prism 6.0 software to obtain a fitted curve of compound activity.

Fitting compound IC according to nonlinear regression equation ₅₀ ：

X: logarithm of compound concentration; y: luminescence value.

TABLE 13

Note that: "-" represents "not tested".

EXAMPLE 203 determination of the metabolic stability of liver microsomes

Mixed human liver microsomes (Cat.452117) were purchased from Corning. Mixed male rat liver microsomes (Cat. R1000) and mixed male mouse liver microsomes (Cat. M1000) were purchased from Xenotech. The microsomes were stored at-80 ℃.

1) A mother liquor containing phosphate buffer, ultrapure water and magnesium chloride was prepared according to Table 14.

TABLE 14 preparation of mother liquor

Buffer solution	Concentration of mother liquor	Volume of	Final concentration
				Phosphate buffer	200mM	200μL	100mM
Ultrapure water	-	106μL	-
				MgCl ₂ Solution	50mM	40μL	5mM

2) The following two experiments were performed

a) Contains NADPH: to the medium, 10. Mu.L of 20mg/mL liver microsomes and 40. Mu.L of 10mM NADPH were added, respectively. The final concentrations of microsomes and NADPH were 0.5mg/mL and 1mM, respectively.

b) No NADPH: mu.L of liver microsomes (20 mg/mL) and 40. Mu.L of ultrapure water were added to the culture broth. The final concentration of microsomes was 0.5mg/mL.

3) After adding 4. Mu.L of the test compound solution or the control compound solution (verapamil) to a final concentration of 2. Mu.M, the reaction was started and carried out at 37 ℃.

4) Aliquots of 50 microliters were taken from the reaction solution at 0, 15, 30, 45, and 60 minutes. The reaction solution was stopped by adding 4 volumes of cold acetonitrile and IS (100 nM alprazolam, 200nM caffeine, 200nM labetalol and 2. Mu.M ketoprofen). The sample was centrifuged at 3,220g for 40 minutes. 100. Mu.l of the supernatant was mixed with 100. Mu.l of ultrapure water and then used for LC-MS/MS analysis. All experiments were performed in duplicate.

Slope k is determined by linear regression of the percent parent drug remaining versus the natural logarithm of the incubation time curve

The in vitro half-life (in vitro t 1/2) is determined by the slope value:

in vitro t _1/2 ＝-(0.693/k)

In vitro intrinsic clearance (in vitro CL _int In μl/min/mg) was converted from the in vitro half-life t1/2 (min) using the following equation (average of repeated determinations):

The assay included a control compound (verapamil). Any compound values outside the specified range will be rejected and the experiment repeated.

Table 15 shows the results of metabolic stability of different kinds of liver microsomes.

TABLE 15

Note that: "-" represents "not tested".

The results demonstrate that exemplary compounds of the present invention have significantly improved metabolic stability in human/rat/mouse liver microsomes as compared to comparative compound a. This improved stability is indicative of excellent pharmacokinetic properties and better clinical outcome in humans.

Example 204 plasma protein binding assay

Plasma protein binding was determined as follows.

1) Preparation of 100mM sodium phosphate and 150mM NaCl buffer (PBS)

By dissolving 14.2g/L Na in deionized water ₂ HPO ₄ And 8.77g/L NaCl to prepare an alkaline solution, which can be stored at 4℃for up to 7 days. By mixing 12.0g/L NaH ₂ PO ₄ And 8.77g/L NaCl in an acidic solution, an acidic solution can be prepared, and the solution can be stored at 4℃for 7 days. The alkaline solution was titrated with an acidic solution to pH 7.4 and stored at 4 ℃ for 7 days. Checking was performed on the day of the experiment, and if the pH exceeded the specification of 7.4±0.1, an adjustment was made.

2) Preparation of plasma

Frozen plasma was immediately thawed at room temperature.

Plasma was centrifuged at 3,220g for 10 min to remove clots and the supernatant was collected into a new tube. The plasma pH was checked and recorded.

Note that: a) Only plasma thawed no more than twice after arrival was used. b) Only plasma in the range of pH 7 to pH 8 was used.

3) Preparation of working solution

Working solutions of the test compound and the control compound ketoconazole were prepared with DMSO at a concentration of 200 μm. Then 3. Mu.L of working solution was removed and mixed with 597. Mu.L of human, rat or mouse plasma to finally give a mixed solution at a concentration of 1. Mu.M (0.5% DMSO). The plasma sample was thoroughly vortexed.

4) Preparation of dialysis Membrane

The dialysis membrane was immersed in ultrapure water for 60 minutes to separate the strips, then in 20% ethanol for 20 minutes, and finally in dialysis buffer for 20 minutes.

5) Balanced dialysis step

The dialysis device was assembled according to the manufacturer's instructions. Each cell was loaded with 120 μl of plasma sample and dialyzed with an equal volume of dialysis buffer (PBS). Assays were performed in duplicate. 5% CO at 37 DEG C ₂ The dialysis plates were sealed at 100rpm and incubated for 6 hours in an incubator. At the end of incubation, the seal was removed and 50 μl samples from the buffer and plasma chambers were transferred into the wells of a 96-well plate.

6) Sample analysis step

To each buffer sample 50 μl of blank plasma was added and the collected plasma samples were supplemented with an equal volume of PBS. The protein was precipitated by 300. Mu.L of room temperature quench solution containing acetonitrile (IS, 100nM alprazolam, 500nM Labetalol and 2. Mu.M ketoprofen). The samples in the plates were vortexed for 5 minutes and centrifuged at 3220g for 30 minutes at 4 ℃. 100. Mu.L of the supernatant was then transferred with 100. Mu.L or 200. Mu.L of water to a new 96-well plate for LC-MS/MS analysis (depending on LC-MS signal response and peak shape).

The percent of binding of the test compound to the control compound was calculated as follows:

% free= (peak area ratio _{Buffer chamber} Peak area ratio _{Plasma chamber} )*100

% binding = 100-% free

% recovery= (peak area ratio _{Buffer chamber} +peak area ratio _{Plasma chamber} ) Peak area ratio _{Total sample} *100

Peak area ratio _{Buffer chamber} Representing free partConcentration of the fraction

Peak area ratio _{Plasma chamber} Indicating the concentration of free and bound moieties

Peak area ratio _{Total sample} Indicating the concentration of the sample at the beginning of the culture

Table 16 shows plasma protein binding results for control and test compounds in different species.

Table 16

Note that: "-" represents "not tested".

Typically, only the unbound fraction has biological effect or is metabolized. Thus, the extent of binding to plasma proteins can significantly affect the pharmacokinetic and pharmacodynamic properties of the drug.

As shown in table 16, comparative compound a reflects a high degree of binding to plasma proteins, and thus the efficacy of the drug may be reduced. Unexpectedly, the exemplary compounds of the present invention have a lower degree of plasma protein binding compared to comparative compound a. The invention is predicted to have excellent pharmacokinetic and pharmacodynamic properties for human body.

Example 205 measurement of cytochrome P450

Cytochrome P450 was measured according to the following procedure:

1) Preparation of a solution containing phosphate buffer, ultrapure water, mgCl according to Table 17 ₂ The solution and mother liquor of human liver microsomes were then added to the above mother liquor either 1 μl of 2mM compound solution or 1 μl of DMSO (no inhibitor control). The final concentration of the test compound or control compound was 10 μm.

TABLE 17

Reagent(s)	Concentration of mother liquor	Volume of	Final concentration
				MgCl ₂ Solution	50mM	20μL	5mM
Phosphate buffer	200mM	100μL	100mM
				Ultrapure H ₂ O	-	56μL	-
Human liver microsome	20mg/mL	2μL	0.2mg/mL

2) For inhibition of CYP1A2, a specific drug substrate (phenacetin: 8 mM) 1. Mu.L.

3) For inhibition of CYP2C8, 1. Mu.L of a specific drug substrate (paclitaxel: 1 mM) was added to the above solution at a final concentration of 5. Mu.M.

4) For inhibition of CYP2C9, 1. Mu.L of a specific drug substrate (tosylamide: 40 mM) was added to the above solution at a final concentration of 200. Mu.M.

5) For inhibition of CYP2C19, 1. Mu.L of a specific drug substrate ((s) -mephenytoin: 10 mM) was added to the above solution at a final concentration of 50. Mu.M.

6) For inhibition of CYP3A4, 1. Mu.L of the specified drug substrate (midazolam: 10 mM) was added to the above solution at a final concentration of 5. Mu.M.

7) For inhibition of CYP3A4, 1. Mu.L of a specific drug substrate (testosterone: 10 mM) was added to the above solution at a final concentration of 50. Mu.M.

8) The mixture was preheated at 37 ℃ for 5 minutes. The reaction was carried out at a final concentration of 1mM by adding 20. Mu.L of 10mM NADPH solution, and carried out at 37 ℃.

9) At the indicated time points (phenacetin: 20 minutes; paclitaxel: 10 minutes; tosyl butyramide: 20 minutes; (s) -mephenytoin: 20 minutes; midazolam: 5 minutes; testosterone: the reaction was stopped by adding 300. Mu.L of cold quenching solution (internal standard containing methanol (IS, 500nM labetalol, 100nM alprazolam and 2. Mu.M ketoprofen). The sample was vortexed for 5 minutes and centrifuged at 3220g for 40 minutes at 4 ℃. 100. Mu.L of the supernatant was then transferred to a new 96-well plate, which was filled with 100. Mu.L or 200. Mu.L of water (depending on LC-MS signal response and peak shape) for LC-MS/MS analysis.

All experiments were performed in duplicate.

The compounds shown in table 18 are the percent inhibition (% units) of CYP1A2, CYP2C8, CYP2C9, CYP2C19 and CYP3 A4.

TABLE 18

Note that: "-" represents "not tested".

The results demonstrate that exemplary compounds of the present invention have low inhibition on CYP1A2, CYP2C8, CYP2C9, CYP2C19 and CYP3 A4. In particular for CYP3A4, which is the major subtype of drug metabolism, the compounds of the invention have less inhibitory effect than the comparative compound A.

Claims

1. A compound of formula I or a pharmaceutically acceptable salt thereof,

wherein,

ring A isR ₄ Is->

Q is selected from

1) When Q isWhen (1):

R ₁ is H;

R ₂ is-C _0-4 alkyl-COOR ₁₀ 、-C _1-4 alkyl-NH ₂ 、-C _0-4 alkyl-OH, -C _0-4 alkyl-C _3-10 Heterocycle, -C _0-4 alkyl-C _6-10 An aromatic ring,wherein-C _0-4 alkyl-COOR ₁₀ 、-C _1-4 alkyl-NH ₂ 、-C _0-4 alkyl-OH, -C _0-4 alkyl-C _3-10 Heterocycle, -C _0-4 alkyl-C _6-10 The aromatic ring may optionally be substituted with halogen, -C _1-8 Haloalkyl or-C _3-10 Heterocyclic ring substitution;

R ₁₀ is H or-C _1-8 An alkyl group;

2) When Q isWhen (1):

x is selected from N, O; z is selected from N; y is C;

R ₁ selected from H or absent;

ring C is phenyl, pyridinyl or pyridazinyl;

R ₅ and R is ₆ Each independently selected from H, CN, -CONH ₂ Halogen, -C _0-4 alkyl-COOR ₁₀ 、-C _1-8 Alkoxy, -C _1-8 Haloalkoxy, -C _1-8 alkoxy-C _1-8 Alkoxy, -C _1-8 Alkylthio, -C _1-8 Haloalkylthio, or-C _0-4 alkyl-OH;

or R is ₅ And R is ₆ Together with the atoms to which they are attached, form a 5 to 12 membered heterocyclic ring, wherein the 5 to 12 membered heterocyclic ring may optionally be substituted with halogen;

R ₁₀ is H or-C _1-8 An alkyl group.

2. A compound according to claim 1, or a pharmaceutically acceptable salt thereof, wherein ring a is

3. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein the compound is of formula II,

wherein,

ring A is

R ₁ Is H;

R ₂ is-C _0-4 alkyl-COOR ₁₀ 、-C _1-4 alkyl-NH ₂ 、-C _0-4 alkyl-OH, -C _0-4 alkyl-C _3-10 Heterocycle or-C _0-4 alkyl-C _6-10 Aromatic ring, wherein-C _0-4 alkyl-COOR ₁₀ 、-C _1-4 alkyl-NH ₂ 、-C _0-4 alkyl-OH, -C _0-4 alkyl-C _3-10 Heterocycle, -C _0-4 alkyl-C _6-10 The aromatic ring may optionally be substituted with-halogen, C _1-8 Haloalkyl or-C _3-10 Heterocyclic ring substitution;

R ₄ is that

R ₁₀ Is H or-C _1-8 An alkyl group.

4. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R ₂ Independently selected from

5. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R ₂ Is that

6. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein the compound is a compound of formula III:

Wherein,

ring A is

Ring C is phenyl, pyridinyl or pyridazinyl;

x and Z are each independently selected from N; y is C;

R ₁ selected from H;

R ₄ is that

R ₁₀ is H or-C _1-8 An alkyl group;

7. the compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein ring C is phenyl.

8. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R ₅ And R is ₆ Each independently selected from H, OH, F, cl, br, -CN, -OCF ₃ 、-O-CH ₃ 、-S-CH ₃ 、-CH ₂ OH、-COOH、

9. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R ₅ And R is ₆ Each independently selected from-CN and-O-CH ₃ 。

10. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R ₅ And R is ₆ Are all-O-CH ₃ 。

11. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein the heterocycle has 1, 2 or 3 heteroatoms selected from O.

12. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R ₅ And R is ₆ Together with the atoms to which they are attached form

13. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein the compound is a compound of formula III:

wherein,

ring A is

Ring C is phenyl;

x is selected from O; z is selected from N; y is C;

R ₁ selected from the absence;

R ₄ is that

R ₅ And R is ₆ Each independently selected from H, halogen, -C _1-8 Haloalkoxy, -C _0-4 alkyl-OH.

14. According to claim1 or a pharmaceutically acceptable salt thereof, wherein R ₅ And R is ₆ Each independently selected from H, OH, F, cl, br, -OCF ₃ 、-CH ₂ OH、

15. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein the compound is:

16. A pharmaceutical composition comprising a compound of any one of claims 1-15, or a pharmaceutically acceptable salt thereof, and at least one pharmaceutically acceptable carrier or excipient.

17. Use of a pharmaceutical composition according to claim 16 or a compound according to any one of claims 1 to 15, or a pharmaceutically acceptable salt thereof, in the manufacture of a medicament for the treatment or prophylaxis of cancer.

18. The use according to claim 17, wherein the cancer is a breast-like secretory cancer of salivary glands, fibrosarcoma of infants, schlemma, colon cancer, stomach cancer, thyroid cancer, lung cancer, leukemia, pancreatic cancer, melanoma, brain cancer, kidney cancer, prostate cancer, ovarian cancer or breast cancer.

19. The use of claim 18, wherein the thyroid cancer is papillary thyroid cancer, the brain cancer is a bridging brain glioma, the kidney cancer is congenital mesodermal kidney cancer, and the breast cancer is a secretory breast cancer.

20. The use according to claim 17, wherein the medicament is for use as a Trk inhibitor.

21. The use according to claim 20, wherein the Trk is wild-type TrkA, trkB, trkC or TrkA G595R, trkA G667C, trkA a608D, trkA F589 or TrkC G623R.